Until I can get my stock steering wheel horn squared away, I’m hoping to temporarily put in. 6v universal horn button. In looking at the ‘39 wiring diagram, I see that one wire from the horn is connected to power from the ammeter and the second wire goes to ground. Since I’ll be running new wires to the universal horn button, I’m not sure where the ground wire connects to ground so I’m hoping someone can give me a pointer on where I can connect the universal horn button’s ground wire. Thanks so much!
Mike
