I have a 73 SWB F100 with a 460 and c6. I swapped in a collum and all of the cruise control components from a 79 model truck that had a 460. All of my turn signals and emergency flashers work. When I hit my horn button, the relay just clicks. The 79 has a horn relay that mounts under the dash. My 73 has a horn relay that mounts on the fender well next to the solenoid.
By looking at the Haynes manual wiring diagrams, I can see that the 73 has a different horn circuit than the 79. On the 79 collum, it sends a + signal to the relay. On my 73 it sends a - signal to the relay.
Can anyone tell me what I need to do to make my horn work? I already bought a new relay and still no horn.
One guy told me I needed to eliminate the fender well mounted relay by doing some rewireing. Anyone know how to do this?
Thanks,
Mike