Notices
JK Electrical, Lighting & Sound Systems Bulletin board forum regarding topics such as stereo head units, CD players, MP3 players, speaker systems, amplifiers, hardmounted GPS devices, computers, headlight upgrades, fog lights, off-road lights, general wiring and anti-theft devices.

Help with wiring 4 PIAA horns

Thread Tools
 
Old 06-05-2019, 07:06 AM
  #1  
JK Newbie
Thread Starter
 
Mango_Tango's Avatar
 
Join Date: Jun 2019
Location: Fairfax, VA
Posts: 2
Received 0 Likes on 0 Posts
Default Help with wiring 4 PIAA horns

2011 JKU. She's lifted and mean looking and the pipsqueak stock horn just doesn't suit her. I don't want to go the air horn route, just something a bit more ballsy. After much research, I've decided to go with the PIAA 85115 Superior Bass Horns, 4 of them to be exact. According to the description, the horns draw 2.7 amps each, for a total of 10.8 amps for all 4 that I want to install. I assume installing a relay is the way to go but do not know if the stock wire harness is sufficient for 10.8 amp draw. Anyone know how I can wire this, what parts I would need?

https://smile.amazon.com/gp/product/...KIKX0DER&psc=1

Last edited by Mango_Tango; 06-05-2019 at 07:09 AM. Reason: hyperlink
Old 06-05-2019, 09:25 AM
  #2  
Super Moderator

 
jedg's Avatar
 
Join Date: Feb 2012
Location: Bunnlevel, NC
Posts: 3,068
Received 114 Likes on 108 Posts
Default

Most of the 12v wire gauge charts say 10 amps can be handled by 16 or even 18 gauge if the distance is under 10 feet. That said, I would install my own relay and use the current harness as the trigger for the relay. Wire the relay as such:

87 - power to your new horns

85 - ground

86 - signal - this should be a POSITIVE from your current horn harness

30 - positive from your battery
The following users liked this post:
Mango_Tango (06-05-2019)
Old 06-05-2019, 04:03 PM
  #3  
JK Newbie
Thread Starter
 
Mango_Tango's Avatar
 
Join Date: Jun 2019
Location: Fairfax, VA
Posts: 2
Received 0 Likes on 0 Posts
Default Awesome, just the answer I was looking for!

I'll post update photos after installation



Quick Reply: Help with wiring 4 PIAA horns



All times are GMT -8. The time now is 05:26 AM.