I just bought a 2003 Monaco Camelot 38pst, I'm trying to install a trailer brake controller as I'll be towing enclosed car hauler, but am stumped! The coach has mountain master tow brake installed, box installed on steering column cover, with main control box in the generator room.
This is the box in the generator room
My coach is NOT pre-wired for trailer brake, I've looked for the plugs and found nothing - here's where I'm stumped. The coach has both 4 lug and 7 plug installed on the rear of coach, with what looks to be a converted off of a tail light (red box on left side of photo)
I would like to do away w/the 4 prong, just used 7 prong plug. Where I'm stumped is, the box for the trailer brake currently installed has NO inputs from the coach, but somehow creates outputs and is totally wired the 7 prong plug. I don't understand how it has zero wires coming in from coach (besides power and ground) and is providing signals to the 7 prong plug.
I don't have any intentions on flat towing a car, I'm just baffled as to the best way to hoot up this brake controller.... I haven't taken a volt meter to the 7 prong yet, but previous owner flat towed and had no issues with the setup, so I'm assuming it gives off good signals to tow vehicle.