Installing a Mopar 4-plug trailer wiring harness in the next few days. Just plugs into the left tail light wiring. The instructions say to disconnect the battery before starting.

Do I really need to disconnect a battery cable just to unplug and plug in my tail light? If so, could I pull a fuse instead?

 

Knowing that I was just going to be handling connectors with nothing bare that could possibly short to ground, I didn't. But I'm not saying it's ok not to.

 

I think I will look for a fuse to pull just to be safe.

 

Hell, I didn't even read the directions and it never crossed my mind to disconnect anything other than the wire harness plug.

 

Same as Robar... I just plugged it in and routed to under the bumper. Worked fine.

 

x3 didn't disconnect anything, just plugged it in line and routed to the hitch, works fine

 

X4 ... just plugged it and routed it as per instructions ... no battery disconnect.

 

x5, just installed a wiring harness an hour ago and didn't disconnect the battery or fuse. Just pulled the plug from the light and put the T connector in.

 

Cool, thanks guys

 

X6 DITTO,