Hello folks, I was hoping to find some help with getting my headlights to turn on. Right now I'm just testing the wiring harness, so there is no motor in the car, however the starter and alternator are wired into the engine bay, and the battery is on a trickle charger at~11-12volts. 11/1971 240z. No dome light No door ajar switches No door buzzer No rear side marker No rear hatch heater No rear speaker No antenna No radio No heater blower or heater controls The PO had installed an aftermarket radio, but I'm pretty sure I sorted all that out. I've checked the headlight and the connecting harness by wiring them directly to the battery so that portion works. When placed on the headlight switch, all the dash lights, side markers, and brake lights turn on as they are supposed to. The voltage at the front of the harness is a very dwindling voltage. Sometimes at 11v sometimes it goes down to 0.15 volts. Even when the high beam is engaged, the voltage from 11 volts or so drops almost down to 0 once the headlights are connected, when this voltage drops to 0, the blue high beam light on the speedo turns off. Voltage at the fuses are 11-12 volts across, but also experience the same draining voltage when anything is wired inline. I've tried and trace the wiring diagram as best as I could. Do these symptoms speak to anyone?