In the wiring pack to the tail-lights what color wires are for the reverse lights, my reverse lights dont come on when I back up, is there a sensor somewhere on the tranny that isnt making contact or has gone bad... When the dumbass's put my camper shell on, they took the bulb out of the cargo light(the one over the rear window), would that have done it or maybe when they spliced power for the new brake light on top of the shell? Inspection is due this month and I need to get these working.