Trailer Wiring Harness

[crazy4sip]

Does anybody have any info on trailer wiring harness (no splice) ?

I ordered a factory 7 Pin harness from my dealer, but after getting it the instructions look to be for older model year. The locations of the connectors etc. to attach to are not where they should be(no luck locating them yet).

I took it back and had the parts guy verify the P/N again and he confirms that it is correct for the 2007 X. Delear tech's haven't done one yet (they have been splicing in behind the tail lense box)

Thanks

[SpudRacer]

I'll be working through the same problem once I get my JK. I ordered it with a towing kit, so should have the wiring there already, but I still plan to splice into the wiring so I can hook up the taillights to a separate wiring harness that will run to the front of the jeep under the bumper. There, it will hook into a harness that runs across a tow bar to the back of my RV. Shouldn't be too hard to wire... I like challenges like that. And yes, I'll take lots of pics as I go, always do!

Tom
Bryson City, NC

[jeepfreek13]

Does anybody have any info on trailer wiring harness (no splice) ?

I ordered a factory 7 Pin harness from my dealer, but after getting it the instructions look to be for older model year. The locations of the connectors etc. to attach to are not where they should be(no luck locating them yet).

I took it back and had the parts guy verify the P/N again and he confirms that it is correct for the 2007 X. Delear tech's haven't done one yet (they have been splicing in behind the tail lense box)

Thanks

I have the harnes and mine was a plug in according to my distructions, I haven't gotten around to putting it in yet though. It says the plugs are right behind the left rear tailight.

[1BADJK]

I see you can buy the 7-pin round connector trailer wire harness from jeep.. But it states that it must be dealer scanned to activate... How does that work???

[HUMONGO]

I just went to the dealer during lunch and they also state that the harness needs to be activated, they didn't know why. They told me yesterday that I could come in and order a 4 pin, yet today I go in and they say that only the 7 pin is available and it's twice as much. WTF?

[crazy4sip]

Hmm.. wasn't told about the scaaning to activate ?

jeepfreek13 let us know if you find that connector with your instructions, the intructions I have say and show the same thing, I took the lense bucket off and looked around inside, no sign of the connector to hook into though even went as far as removing the other side, carpet in the rear area etc. even spent some time under the Jeep on a creeper with no luck.

Hopefully its' the if it was a spider it would of bit ya, but I'll be darned if i can find it.

So far the time being I have a 79.00 dollar harness sitting on the floor of my office......

[Phishjeep]

I ordered one from Quadratech when I ordered my hitch last week. Four Pin, pass through harness, supposed to ship direct from the manufacturer the first week of december, $25. They didn't have it on the website, but the guy I talked to described it to me.

The hitch receiver came in Tuesday. There was a piece of slag keeping the receiver from mounting all the way, and I would have had to take the bumper off to get in there with an angle grinder, but I managed to grind it down with a chainsaw sharpener bit on a dremel. It cost me two used beyond useful $3 dremel bits, but it was easier than taking the bumper off. And the receiver looks great. I need to get another bar with a four inch drop for my small utility trailer. The straight bar from my wife's Tucson makes it quite an angle.

[jeepfreek13]

Hmm.. wasn't told about the scaaning to activate ?

jeepfreek13 let us know if you find that connector with your instructions, the intructions I have say and show the same thing, I took the lense bucket off and looked around inside, no sign of the connector to hook into though even went as far as removing the other side, carpet in the rear area etc. even spent some time under the Jeep on a creeper with no luck.

Hopefully its' the if it was a spider it would of bit ya, but I'll be darned if i can find it.

So far the time being I have a 79.00 dollar harness sitting on the floor of my office......

Where was it saying you needed to have it scanned? the part # on mine is 1-82210214. it is the 7 pin. if you pull the left rear light out...it plugs into the harness. at this junction is where you plug in the end where the additional flasher module is also located.

[HUMONGO]

Hmm.. wasn't told about the scaaning to activate ?

jeepfreek13 let us know if you find that connector with your instructions, the intructions I have say and show the same thing, I took the lense bucket off and looked around inside, no sign of the connector to hook into though even went as far as removing the other side, carpet in the rear area etc. even spent some time under the Jeep on a creeper with no luck.

Hopefully its' the if it was a spider it would of bit ya, but I'll be darned if i can find it.

So far the time being I have a 79.00 dollar harness sitting on the floor of my office......


Take the two inside screws (as in top and bottom, closest to the gate) out of the light assembly and the entire thing comes off the body. The plug is right there. Use a small flate blade screwdriver and press the clip in and pull apart. The entire light unit should then be disconnected from the vehicle. I'm assuming this is the connector as it looks similar to other harness connectors I have used.

I spoke with Quadratech yesterday and they said that they didn't know when the 4 pin harness would be available. I try tomorrow to see if I can place a pre-order.

[jeepfreek13]

thats what I also found. did yours have anything about neeeding to be scanned? mine did not

[1BADJK]

Ok, I talked to my dealer yesterday about the Trailer 7-pin wire harness.. The whole Scanned / Activation process is just to enter a Data Entry Log into your Computer system that states you have installed a Wiring harnes intended for towing.. And that you the owner intends to tow with his vehicle.. If you ask me BS... Its non of their business if I intend to tow with my vehicle.... Anyway.. Just an FYI..

[HUMONGO]

Ok, I talked to my dealer yesterday about the Trailer 7-pin wire harness.. The whole Scanned / Activation process is just to enter a Data Entry Log into your Computer system that states you have installed a Wiring harnes intended for towing.. And that you the owner intends to tow with his vehicle.. If you ask me BS... Its non of their business if I intend to tow with my vehicle.... Anyway.. Just an FYI..

What, is that so they can void your warranty if your transmission/clutch burns out? What difference should it make to them if I tow with the vehicle?

[1BADJK]

My point exactly.... The harness is just Plug-N-Play... I already installed one..

[HUMONGO]

I just got off the phone with Quadratec. They said that the 4 pin harness is in production from the factory and would be available the first part of December (as previously stated), but it could be several weeks before they are able to ship them.

Has anyone else found a 4 pin harness available online? What about using a universal wiring kit?

[crazy4sip]

Where was it saying you needed to have it scanned? the part # on mine is 1-82210214. it is the 7 pin. if you pull the left rear light out...it plugs into the harness. at this junction is where you plug in the end where the additional flasher module is also located.

I have a different part number 1-82209182 for my 7 pin harness, the connector type is completely different from the one on the back of the light assembly. I think iI'll go back down to my dealer and have them verify the part number again.

[crazy4sip]

Take the two inside screws (as in top and bottom, closest to the gate) out of the light assembly and the entire thing comes off the body. The plug is right there. Use a small flate blade screwdriver and press the clip in and pull apart. The entire light unit should then be disconnected from the vehicle. I'm assuming this is the connector as it looks similar to other harness connectors I have used.

I spoke with Quadratech yesterday and they said that they didn't know when the 4 pin harness would be available. I try tomorrow to see if I can place a pre-order.

I'm thinking about calling and ordering a 4 pin from them and take this back, the part number jeepfreak quoted is different from the one I have even though the delaer claims it is correct. The connector behind the lense assembly doesn't match the one on my 7 pin harnes. I only ordered the 7 pin becasue I couldn't find a 4 available yet.

[1BADJK]

I have a different part number 1-82209182 for my 7 pin harness, the connector type is completely different from the one on the back of the light assembly. I think iI'll go back down to my dealer and have them verify the part number again.

I to bought the PT # 82210214 and it plugged right in...

[HUMONGO]

Nobody has the 4 pin. I went to a trailer place last night after having no luck at the dealer and the one they tried to give me noted '96-07 Wrangler. The guy tried arguing with me about it when I explained that I had a JK. I took pictures with my phone and went home and compared. Glad i didn't buy it because it wouldn't have fit. DC is doing the typical trick of changing little things like this for no reason other than making a couple of extra bucks on accessories.

I bought a universal wiring harness at lunch and will put it on this weekend. I'll post my results. I've used these before on my Jetta. They're pretty straight forward and work just as good as the stock part, just take some minimal common sense and knowledge. I plan on leaving all the wiring on the inside and pulling it out when I tow. One less thing to screw up with mud or rocks.

[jeepfreek13]

I'm thinking about calling and ordering a 4 pin from them and take this back, the part number jeepfreak quoted is different from the one I have even though the delaer claims it is correct. The connector behind the lense assembly doesn't match the one on my 7 pin harnes. I only ordered the 7 pin becasue I couldn't find a 4 available yet.

I wonder if there are looking at the right Model. I check with mine and I think they said that fit the Commander.

[HUMONGO]

The universal harness will not work. I could not get it to work right at all. I even got a different one and couldn't get it to work either. Tested every wire a dozen times to make sure I had the right ones. I had others look at it and double and triple check my work, to no avail.

Alas, I guess I'll wait for the plug and play.

[crazy4sip]

Thanks to jeepfreak13 for the correct part number my delaer finally figured out they sold me the wrong harness.

Got the new in on Saturday and installed.


The Dealer didn't mention wanting to document the install or the harness/scanning.


Thanks to all who replied.

[jeepfreek13]

Glad to hear you got the right one!!:thumbsup:

[cmnah]

I just got off the phone with Quadratec. They said that the 4 pin harness is in production from the factory and would be available the first part of December (as previously stated), but it could be several weeks before they are able to ship them.

Has anyone else found a 4 pin harness available online? What about using a universal wiring kit?


Any Updates on the 4 pin harness?

[HUMONGO]

Any Updates on the 4 pin harness?

I punked out and got a 7 pin from the dealer. Guess I'll use an adapter. Dealer said that they aren't even making a 4 pin. Sucks. Who knows if I can believe them.

I too had the idiots order the wrong harness. Glad I made them check the part number before I wasted another Saturday

[markp_satx]

Hey - I just bought a 4 pin to 7 pin adapter that works just great. The back of it is a 4-pin that plugs into my factory 4 pin harness. The front is a 7-pin (female) that accepts my trailer 7-pin plug.

I bought it at http://hitches4less.com/adapters.html; part number HY47185. It's real easy to install and leaves the factory harness in tack without any splicing.

[HUMONGO]

I have a different part number 1-82209182 for my 7 pin harness, the connector type is completely different from the one on the back of the light assembly. I think iI'll go back down to my dealer and have them verify the part number again.

THOSE F@%#ING IDIOTS!!!!!! The gave me the wrong harness AGAIN!!!!!

I was in there having a new bumper put on and he said they verified the part number twice. Should have known. I too got the 82209182 harness.:mad: :mad: :mad:

[HUMONGO]

Ok, so I go to the dealer, noticably angry. I explain that it's the wrong harness and give them the "1-82210214" part number. Well, guess who has that in stock with the original lading date from when they ordered my first harness...

Long story short, I open it up and confirm that it has the right clips. I made them comp me a service manual because I didn't trust them to do non-service work to my Jeep!!!!!

I'll update after an install.

[crazy4sip]

Ok, so I go to the dealer, noticably angry. I explain that it's the wrong harness and give them the "1-82210214" part number. Well, guess who has that in stock with the original lading date from when they ordered my first harness...

Long story short, I open it up and confirm that it has the right clips. I made them comp me a service manual because I didn't trust them to do non-service work to my Jeep!!!!!

I'll update after an install.

I feel your Pain, I went to my delear twice and everytime they confirmed the harness was correct, It wasn't until I took the Part Number Jeepfreek13 provided that they figured it out. Needless to say I lost a couple of weekends of ATV riding without trailer lights.

[jeepfreek13]

I have to say that I have a lot of faith and confidence in the parts department of my local dealership. I also have faith in a mechanic there to do all my work, warranty or not,

Glad to hear you guys got the right one...however, it sucks that you have lost faith in them, but if you cot a service manual from them, good job!!

[Robar]

Take the two inside screws (as in top and bottom, closest to the gate) out of the light assembly and the entire thing comes off the body. The plug is right there. Use a small flate blade screwdriver and press the clip in and pull apart. The entire light unit should then be disconnected from the vehicle. I'm assuming this is the connector as it looks similar to other harness connectors I have used.

I spoke with Quadratech yesterday and they said that they didn't know when the 4 pin harness would be available. I try tomorrow to see if I can place a pre-order.

Thanks Humongo, that was my next question. I just got my hitch receiver from Quadratec today and my 4 pin connector from Mopar a couple days ago. I looked around under the back, while I was installing the hitch, but couldn't find where to connect the wire harness. But now I know.

Are you disassembling the tail light in the right or left side?

[HUMONGO]

Thanks Humongo, that was my next question. I just got my hitch receiver from Quadratec today and my 4 pin connector from Mopar a couple days ago. I looked around under the back, while I was installing the hitch, but couldn't find where to connect the wire harness. But now I know.

Are you disassembling the tail light in the right or left side?

I bought a Mopar 7 pin because I needed to use my trailer and couldn't wait for the 4 pin. It's pretty easy. Just pull the driver's side tail light and unplug the harness. At the bottom of the compartment that the taillight sits in, there is a foam rubber pad that you just pull out, feed the harness in and replace the pad. Then you follow the instructions and run the harness along the underbody up to the front. Mine said to hook the red to the positive and the black to the negative which was pretty intuitive. Problem was, I had a red and black wire and a white wire......WTF?!?! I hooked the white to the negative and it all worked. Hardest part was trying to keep the harness off the exhaust manifold.

[Robar]

My 4 pin harness did not come with any instructions and it is only about 4 to 5 feet long. It looks like it just plugs between the existing tail light connector then feeds down to the hitch.
Thanks again for the info.

[HUMONGO]

My 4 pin harness did not come with any instructions and it is only about 4 to 5 feet long. It looks like it just plugs between the existing tail light connector then feeds down to the hitch.
Thanks again for the info.

It may, that's probably why it's $40 cheaper!!!:naw:

[jdrogers]

The harness connects to the left tail light.

[Robar]

Thanks fellows, :thumbs: it was a snap, I mean literally a snap. It took all of 3 or 4 minutes to snap in place and route the end to the hitch. :D

Now I have to find me a little utility trailer to replace the pickup bed I had on the Titan.

[scottcarp]

I have the factory tow package on order - I mostly use the hitch for my bike rack, but occasionally rent a trailer from Uhaul. I'm unclear on a few things:
a) Does a basic trailer just need a 4 pin? Why would I need a 7 pin?
b) Which comes with the factory-installed Tow Package?

If the factory package is the 4 pin, it would be cheaper to buy a 4 pin from Mopar and a hidden hitch from Quadratec.
OR for the same $200, get the 7 pin from mopar and the hitch from Quadratec.
Either way, I'll have the tow hook left over.

Thoughts?
Thanks,

[hurstrescue]

According to Jeep.com, the tow package includes the 4 pin wiring connector.

I think if you rent a trailer from uhaul it uses their own/proprietary connection, but can provide an adapter for a 4 pin. I have not used one of their trailers in a long time so I am not 100% sure.

Most small trailers come with a 4 pin connection standard (at least that is what my current utility trailer has, as well as my past pop-up camper and boat had).

That is what I have on my JK.

Hope that helps!!

Joe

[scottcarp]

According to Jeep.com, the tow package includes the 4 pin wiring connector.
RTFM! :doh: Thanks, Joe.
jeep.com also points out that it's a class III, so my 2" bike rack won't fit anyway. I could get an adapter, I guess. More to think about while I wait...

[hurstrescue]

I just check the site again, and looked at the mopar info for my receiver. It is a Class II. It has the standard 2" that fits most accessories. My bike rack, cargo rack, etc. fits just fine.

[scottcarp]

I just check the site again, and looked at the mopar info for my receiver. It is a Class II. It has the standard 2" that fits most accessories. My bike rack, cargo rack, etc. fits just fine.

:naw:
This is why I don't even change the oil...

[1BADJK]

I have the factory tow package on order - I mostly use the hitch for my bike rack, but occasionally rent a trailer from Uhaul. I'm unclear on a few things:
a) Does a basic trailer just need a 4 pin? Why would I need a 7 pin?
b) Which comes with the factory-installed Tow Package?

If the factory package is the 4 pin, it would be cheaper to buy a 4 pin from Mopar and a hidden hitch from Quadratec.
OR for the same $200, get the 7 pin from mopar and the hitch from Quadratec.
Either way, I'll have the tow hook left over.

Thoughts?
Thanks,

You only need the 7-pin if you intend on towing a large heavy trailer.. Which has trailer brakes and accessories.. The 7-pin provides just that.. A trailer brake control lead and battery charging lead..

[DeezUU]

4pin FTW!!

I'm ordering my hitch & harness tonight from 'somewhere'(?) so I can tow my Polo (see sig) to shows. My tow dolly has a standard 4pin connector but the ones we use to rent from U-Haul have a 'special' connector and adaptors that they usually make you buy. Best bet if you land in that situation is go to Northern and buy a 4Pin vehicle side harness and put bullet connectors on the loose end. That'll save you about $30 if you ever rent a U-Haul!!

But I do have a quick Q....

Does the 4pin actually mount anywhere on the hitch? Or is it going to dangle?! I want it secured or at least tucked away somewhere so it doesn't get destroyed. I've seen a few with 7pin connectors driving around and they all seem to be mounted but have yet to see a 4pin. My pop's XJ has the harness sitting inside the hatch and he just puts it under the spare when not needed but there doesn't seem to be a way to do that in the JK.

[scottcarp]

Thanks everyone for straightening this out for me.
Since I'll probably never need a 7pin, I'm going to stick to the factory hitch and add a reciever hook or D ring. It may cost a few more $, but it's a lot more convenient, and I won't have to sell or store the factory hook.

[2K1TJ]

Does anybody have the correct part # for the 4-pin?

[hurstrescue]

"But I do have a quick Q....

Does the 4pin actually mount anywhere on the hitch? Or is it going to dangle?! I want it secured or at least tucked away somewhere so it doesn't get destroyed. I've seen a few with 7pin connectors driving around and they all seem to be mounted but have yet to see a 4pin. My pop's XJ has the harness sitting inside the hatch and he just puts it under the spare when not needed but there doesn't seem to be a way to do that in the JK."

"Does anybody have the correct part # for the 4-pin?"

Yes, there is a place on the mopar receiver for the 4 pin connector. See the link below for part numbers and pictures....

http://www.jk-forum.com/showthread.php?t=4092

Hope this helps....



Joe

[2K1TJ]

Thanks! Gotta call the dealer now. ;)

[DeezUU]

Well... ordered the hitch and 4pin from Quadratec last night but it looks like the 4pin harness is backordered. Hope they come in within a month! I have some towing I need to do!!!

[HEK]

I ordered both the hitch and wiring which have been in my bedroom waiting to be installed for over a month....someone mentioned that there was a "slag" that needed to be ground?....has anyone else had to deal with this?...and has anyone thought about the "little black box" our JK's are equipped with and record the "accidents", therefore could this be the reason why we need to "activate" the "wiring"??...my 2 cents...thanks

HEK

[DeezUU]

Hitch showed up today (big ups to Quadratec... that was fast!) and tried to install it without knocking the slag off. Aint gonna happen!! lol. The I knocked off the slag (most of it) and hammered it on. X threaded a damn bolt !! Sunofabich. Off it came and now I gotta chase the threads from the other side. So I figure instead of just trying to 'throw it on' ... I'll wait till the weekend and clean it up real good and do it right.

[HEK]

It got over 40 degrees and I too installed th hitch and wiring, total time 30 minutes...where is the slag that some of you are talking about?.....mine just went on so smoothly that I was beginning to worry if I was doing something wrong....:thinking:

[DeezUU]

Does anyone know where the harnesses aren't backordered?!? I'm thinking of cancelling my order through Quadratec since I need the harness by next weekend but I haven't found one IN STOCK anywhere yet.

[jeepfreek13]

which harness are you looking for the 7 or 4? My dealer had mine on their shelf, 7 pin style

[deadspot]

Well, I went out and took a couple quick pics - but they didn't come out great - but hope they might help. I actually wasn't sure myself. I guess either there is a bracket that is part of the hitch or there is an add-on plate that mounts on one of the bolts to the hitch. I guess there most be something similar for a 7 pin? I need to switch my 4 pin out - so I would be curious how others are mounting the new 7 pin.

http://i153.photobucket.com/albums/s206/deadspotphoto/693da8f4.jpg

http://i153.photobucket.com/albums/s206/deadspotphoto/41d3957b.jpg

http://i153.photobucket.com/albums/s206/deadspotphoto/10a454b9.jpg

[roddogg]

I was just about to make the mistakes of mistakes. I have a service appointment on Tuesday to install the 7 pin. If all the scanning does is notitfy big brother that I'm towing a trailer then to h--l with them. I just do it my self.

The order number for the 7pin is 82210214 and sell for $79 list from mopar
The order number for the 4 pin is 8221023 and sells for $39 list from mopar

An internet search will supply you several options and reduced cost for these parts.

Any one know what the additional wires are for.

Roddogg

[ska tatanka]

82210213 is correct number for 4 prong

[wolverine_man]

Just called my dealer for the 4 prong. They'll have one in by Monday. According to his parts manual, the 4 prong harness does not need to be flashed but the 7 prong does. Can anyone confirm this?

thanks

[Dubya]

Just called my dealer for the 4 prong. They'll have one in by Monday. According to his parts manual, the 4 prong harness does not need to be flashed but the 7 prong does. Can anyone confirm this?

thanks

This is correct. I installed the 4 prong myself. Took about 5 minutes and works great. :yup: I think you need a flash for the 7 pin since more current is being used (brakes, battery charging etc) and the TIPM needs to know about it...

[evanyj350]

I just got the hitch and 7 pin wiring harness from the dealer. The harness is long and looks like it's supposed to go all the way to the engine compartment and connect to the battery, and part of it has to feed thru the firewall to under the dash ? Thought this was going to be an easy project. The directions are horrible to boot !

By the way I've got a rear tow hook available for sale if anyone wants one.

[evanyj350]

Nice mounting on the bumper Dr Dirty. Does anyone with stock bumpers have any ideas on a better place to mount the 7 pin plug? When they are mounted next to the hitch they always seem to get dragged thru the mud and bent or broke off the mount.

[RubiConz]

Does anybody have a good mounting location for the 4 pin with a hitch other than the Mopar?

[renegadelt1]

I just did the Curt hitch from 4wd and the OEM 7 way harness from Jeep, There is no need for the dealer to install the 4 or 7 way no need for a reflash, it is a real pain to run the 7 way as it needs to connect to the battery also a wire under the dash for a brake controller if needed. Here’s a link to the instructions 7 way.
://www.mopar-accessories.com/en-US/imagehandler.ashx?id=2127
And here’s the 4 way
://www.mopar-accessories.com/en-US/imagehandler.ashx?id=2122
Hope this info helps:)

[jsmoriss]

I have a 4-pin plug that came with the JK, but need a 7-pin for a future trailer with brakes. I was looking at the 7-pin harness from Quadratec http://www.quadratec.com/products/92015_111.htm but the instructions are pretty slim about what to do with the blue brake wire. Anyone know where it goes once it's routed under the dash?

Thanks,
js.

[renegadelt1]

The blue wire is the control wire for your trailer brakes and it connects to a electronic brake controler like this one in this link.
campingworld.com/shopping/item/energize-iii-brake-control/38307

Here's the jeep link. mopar-accessories.com/en-US/imagehandler.ashx?id=2127[/url]


Hope this helps.

[jsmoriss]

The blue wire is the control wire for your trailer brakes and it connects to a electronic brake controler like this one in this link.
campingworld.com/shopping/item/energize-iii-brake-control/38307[/URL]


Awwww, man, that's like a whole other thing I have to research now... :crazyeyes: Thanks for the info! :-)

js.

[renegadelt1]

Don't spend a lot of money on a controler as they all do the same thing, Not hard to connect 4 wires, More trouble to find a place to mount it.:thumbsup:

[Enduroking]

Well, I decided to go with the flat 4 connector. I went to my local dealership (All-American/Lithia) and they didn't have it in stock... Then they wanted my VIN number to order it!! I just laughed at them!! I told them I could get it for about $5 cheaper on the internet and they didn't need my VIN number!! I'm getting to where I just HATE my local dealer.... BTW, I bought mine from Arrow Jeep in Abilene TX and everytime I've been there, they have been great to me! But it's a 170 mile drive.... BUMMER.... So it looks like I'll be ordering it from Quadratec... Thanks for all of the info provided on this thread, without you I would have never known about the flat 4 connector!!!

Thanks,

[sly]

as far as i know 4 pin is plug and play and 7 pin has to be sliced in and flashed by the sealer so they know you been towing.
i got my harness from mopar (4 pin) and its a plug and play about half and hour job from start to finish.

[RedneckJeep]

I used the Mopar hitch and harness. I gotta hard time figgerin out why somebody would use somethin different they fit so well. :thinking:

[renegadelt1]

I used the Mopar hitch and harness. I gotta hard time figgerin out why somebody would use somethin different they fit so well. :thinking:

:thinking:Must have been a 4 way:what?: That 7 way tried to kicked my A$$.:cursing:And it was OEM mopar parts:yup:

[renegadelt1]

as far as i know 4 pin is plug and play and 7 pin has to be sliced in and flashed by the sealer so they know you been towing.
i got my harness from mopar (4 pin) and its a plug and play about half and hour job from start to finish.

NO reflash required :thumbsup:connects the same as the 4 way in rear just 3 more wires to the front, hot-ground -and blue for brake controller "customer supplied":)

[montano]

Wow!!!! :eek2: This thread answered all of the questions that I had. :clap: I ordered the 7 pin wiring harness from an eBay seller. I was a little worried about buying something like that on line, especially from eBay, but I looked up all the information that I needed to know from the Jeep website before I even started to look at the stuff on line. For those of you who plan doing the same thing I did, I would suggest that you check out eBay because it was the cheapest place that I was able to find on line. I also ordered the hitch from eBay. I ended up paying a total of 161.00 for the wiring harness and hitch and that's including shipping. I'll post some pictures on here once I'm done with installation on the 7 pin harness.

[uup4it]

check out theptcruisersuperstore.com for wiring harnesses.

4 pin $32.95 7 pin $65.95 w/free shipping

FYI

[montano]

I installed the 7 pin harness today. It went on relatively easy. The only hard part was trying keep the harness away from the exhaust and the manifolds. Thanks to all of you out there. I knew what I needed to do before I even started to run the harness.

[downunderdave]

How do you guys mount the round 7 pin connector? It hangs down a bit low compared to the hitch. In Australia we also have a 7 pin flat connector. much like the 4 pin flat, just wider. I'm just wondering if you find the suggested factory mounting for the round 7 pin okay.

[Freightguy]

Ok, I have a cooltech harness for towing the JK behind my RV. How do I use the plug and play harness for trailer lights while having the dinghy lights? Can I plug the trailer harness into the right side?

[jsmoriss]

How do you guys mount the round 7 pin connector? It hangs down a bit low compared to the hitch. In Australia we also have a 7 pin flat connector. much like the 4 pin flat, just wider. I'm just wondering if you find the suggested factory mounting for the round 7 pin okay.

I plan to drill through my rear (Expedition One) bumper. The OEM method uses a bracket next to the hitch receiver -- it hangs a little too low for my tastes.

js.

[schmugboy]

Since I will only be pulling light trailers (pop-ups)(most still have 7pin for some reason) is there something that will go from 4 pin to 7 pin, I have a 7pin to 4pin from my cherokee.

dd