We have turn signals and emergency flashers!!! Working on the brake lights tomorrow. Someone bypassed the contact brake switch at the pedal and installed a pressure switch near the master cylinder. I have power to the pressure switch and the lights work if I jumper the switch, so I'm going to flush the lines and install a new switch. Hopefully, it's just gunked up.
Then it's the backup lights. If I remember correctly there are two plugs under the heater controls that connect the taillight harness to the dash harness. Is there any way those plugs can get switched, or are they idiot-proof? Do the backup lights even run through that harness?