I am wiring a 1973 Holiday Rambler. I have the turn signals, brake lights and tail lights figured out. On all the diagrams I see, the electric brakes have one blue wire. This has a black wire and a white wire running from the brakes to the fron of the camper. When I apply a 12 volt source to these wires (Black hot, White Ground) nothing happens. Should this activate the brakes? I also have a black wire that is not a ground coming from the front and cant find what this is running. There is no evidence anywhere on this trailer that there was a battery, but comming from the inverter marked Battery are a black and white wire running into the floor and I cant find where they go to. Any help that anyone can give me I would be greatful!!!
2000 Georgie Boy