i am doing 1970 challenger went with all new wiring in the car i have pretty much evrything working but the dash lights and headlamps. i have tried different h/l switches. dash dimmer switch, and floor dimmer switch. for some reason i have no power to the orange wires in the dash and no headlamps. the marker lights,taillights and parklamps all work fuse is good. I am baffled any suggestions thanks