I just bought a used Alpenlite 5th wheel and the previous owner "messed" with the wiring on the female (trailer side) umbilical hook-up. How do I figure out which wires do what so I may wire it to my truck?
On my old 89 winnebago the wires to my trailer dolly are as follows:
White to Black
Green to Green
Blue to Yellow
Orange to Red
This may not help you, but it might. There may be other wires also that I am not aware of, but wanted the running lights, brake lights, etc., to work on the dolly to my MH wire connector.