[Phil]

Ok, did not know you had been melting stuff. I would put a fuse or circuit breaker in the wire that comes off the battery cable at the starter post. This will save further melt down problems. Remove and separate the three wires at the cutout on the generator. This will isolate power to the light switch and horn. The horn has power at all times and is a common spot for a short. The car should start and runs all lights and horn will be in op. if it will not crank and run now the short will be in the wiring in the junction box and dash. This will give you the area to locate the shorting working. Keep use posted.