So I have exhausted my searches looking for a wiring diagram specific to a 1974. While I was trying to figure out some wiring under the dash I noticed that the buzz/hum I was hearing was coming from my wiper motor motor. Seems along the way it must’ve been frozen and burned the plug. All the wires from the wiper motor and were all burnt and melted together. Does anyone have a schematic or know how they’re supposed to go back? After cutting it I seem to have lost switched power to the fuse block