I have a 1969 L71. The previous owner had a bad habbit of disconnecting various features...(I found the Cluch Petal Starter Switch with a jumper wire, rear astro vent vacum acutator disconnected, etc). I've recently learned that this car came with a key warming buzzer. The buzzer never worked since I owned the car, so I am wondering if it simply discconnected, but I have no idea of the location. Someone said to check the horn harness, but I have no clue where that is either. Can someone tell me exactly where to look to see if the buzzer is disconnected and other places and things I could check to see if it works?

 

It's the horn relay on the fender well next to the alternator. Should have a heavy red wire connected to it.