I took apart the switch on my 78 today, to fix the horn. Sure enough, one of the wires came off inside the switch, and the horn works fine now. What a set-up inside there! Adding the horn to the turn signals, and the high beam switch/flash might be one too many items. I have one problem though, during re-assembly, the strap that secures the whole unit to the steering column snapped. Is there another way to secure this unit, or do I need a new one? Hope not, since I just got this one working.
Thanks