Horn/headlight problem.
12-05-2011, 08:06 AM
#1
JK Enthusiast
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Horn/headlight problem.
Hey guys over the weekend I removed my stock horn and installed a used air horn from my brother inlaw. It plugged right up to the stock wiring without any modifications. It worked for a few seconds then I blew the fuse. I replaced the 10 amp fuse with a 30 amp fuse and now it works fine. However when I blow the horn my headlights and fog lights flicker ever so slightly,Is there something else I should do or is there something wrong? By the way I have a 2011 rubi unlimited.
12-05-2011, 02:08 PM
#2
JK Jedi Master
Hey guys over the weekend I removed my stock horn and installed a used air horn from my brother inlaw. It plugged right up to the stock wiring without any modifications. It worked for a few seconds then I blew the fuse. I replaced the 10 amp fuse with a 30 amp fuse and now it works fine. However when I blow the horn my headlights and fog lights flicker ever so slightly,Is there something else I should do or is there something wrong? By the way I have a 2011 rubi unlimited.
Not only is the wiring inadequate for 30 amps, I'll bet the relay is marginally capably of carrying 30 amps.
Last edited by ronjenx; 12-05-2011 at 02:14 PM.
12-06-2011, 09:18 AM
#5
JK Super Freak
Run a #10 wire from the battery to a relay, and from the relay to the new horn. Use the stock horn wire to trigger the relay. Put a 30 amp fuse or circuit breaker in the #10 wire as close to the battery as possible. If you arn't familiar with how to wire a relay, there should be tons of how-to write-ups on this site or elsewhere.