so did the swap. numbered out the neutral switch. starts fine. but when I hook up the the red/black wires to reverse switch nothing happens. does not start and the reverse lights don't come on either. I checked continuity on the switch, checked bulbs all are good. weird thing is after I disconnect the red/black reverse wires and wait awhile the car starts again without the red/black. also blue/black wires? can figure out where they go to. oh 1973 610 sedan. thanks guys