I would 100% recommend going to a relay at the horn. The low current draw now at the button makes it much easier to get a stable working button. Fix for this is installing a relay at the horn and using the horn button as just a trigger circuit for the relay. Not an issue with a stock horn but it can be an issue with aftermarket parts getting shorted out causing the horn to sound when you don't want it to. In the old Ford's, full amperage to sound the horn goes through the horn button. That would be normal and you would need to get the proper horn button or modify what you have so it doesn't short to ground. ![]() In looking at the picture, I'm thinking both wires are needed to sound the horn. If you touch those 2 wires together, does the horn sound? Will it sound if only 1 wire is touched to the wheel to ground it? If only 1 wire sounds it, that is the 1 to go to the button.
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