Bart,
I took 2 6V horns from a 53 chevy car and wired them into my system. These are single wire horns; self grounding. I used them because when I send 12V through them, you can hear them at your house.
So...knowing that, what do you suggest?
I'm so grateful for all yours and Carl's advice.
Ed
For a self grounded horn, you should use a relay. Wire power to the relay common contact, from the relay NO contact to the horn. Wire power (a jumper) to one relay coil contact and the other relay coil contact to your horn button (assuming its the stock horn button, which supplies a ground). Be sure to put a fuse on the power wire to the relay.
