B58_ hwAyaq
Well-Known Member
Red/White is power. See a couple completed horns here: https://www.supramkv.com/threads/replacing-horn-with-piaa-sports-horn.10997/post-202047So I got the bumper off and making the wire harness for the low freq horn.
The factory red-white wire is the power I am assuming..
I was expecting the brown to give me 0V with a known ground and infinite for red-white.. but both give me 0V.
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Maybe it’s 0v until the horn is pressed? I’m no electrician.
I’ve seen people connect ground to brown, and I’ve seen them connect ground to the car. I chose to connect ground to brown.


