** anyways it took me a couple weeks to figure out the correct LED Bulb size and polarity so they all work now ...just need to add a second courtesy light on the driver side. so now my voltage regulator is not working as hard to push supple incandescent bulb power...LED bulbs from headlamps, interior to tail/license plate. 1966 & 1967 Mercury Comet Cyclone - Gen2 Mercury Comets Mercury Comet Discussion & Parts For Sale