I am trying to get the stupid reverse lights to work on the 1969 Road Runner 4 speed car that I am currently building. The car has a new dash harness, new engine harness and a new tail light harness. I've got all of the other lights working on the car but am having fits with the reverse lights. I tried jumping the connector by the transmission to see if I could get the lights to work but still got nothing. However, if I jumped the wires to some 12v power, they worked. That leads me to believe that there is a short in the power circuit somewhere. I looked at the wiring diagrams on mymopar.com but that just left me scratching my head more.