I have a 2006 Grand Cherokee Laredo 3.7L V-6. A couple of weeks ago the horns stopped working. Checked fuses and relay, all are good. Even tried a different relay and still nothing. I bought a set of Air Horns with a compressor. I'm trying to figure out if the black wire is the supply or the green/orange is the supply???
I was told I can wire it using the existing circuit, but if needed, I can wire up a new relay..
I'm trying to go the easiest route and use the existing circuit...
Any Idea's????

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