This was a straightforward install except for one thing-every time I turn on my ignition the horn goes off.
This is on my Thing, but I suspect the wiring is very similar to a Beetle, so my question is directed to anyone who has installed an aftermarket set of horns.
Horns: a pair of Hella Supertones
The old horn had two wires connected to it. A black wire, with a yellow stripe and a brown wire.
When using a relay what did you do with these two wires and how do I figure out which one is the power wire?
I've got a power wire directly from the battery (through a fuse) to the relay and I have a wire from the horns directly to the relay. I connected the black/yellow wire to the relay, but didn't to anything with the brown wire. Do I need to ground that wire?