What Trailer Wiring Requirements are Needed for Prodigy RF Brake Controller to Function  

Hello, I have a question regarding the tekonsha prodigy RF wireless brake controller. I have a trailer that is custom made for a industrial application for a customer. This trailer is to be towed to site by a semi truck but then once there it will probably never or very infrequently be towed again. So my trailer has electric brakes on it but thats all. No other lights. However to be legal on the roads for its one way trip, when the semi truck comes they have a light bar the driver places on the back of the trailer for the brake lights, turn signal and clearance markers. This light bar is then connects to the semi truck for the trailer lighting using one of the semi trucks 7 pin cords. Then the light bar is removed once the trailer is at the new location. So I have one cord from the semi truck to the light bar and there will be another cord from the semi truck to the prodigy RF controller mounted on the trailer. I know I need to make a adapter to convert the semi trucks 7 pin round connector to the 7way end that comes with the prodigy RF. My question is what wires do I all need to connect up for the prodigy RF to the semi truck to work correctly. Seems a waste to connect everything as all the controller is actually controlling is the electric brakes and the issue that semi truck have separate the brake and turn signal yet the 7Way on the prodigy is brake and turn signal combined. Hope I wasnt too confusing in my description of what I am trying to accomplish. Your help is greatly appreciated in solving my dilemma. Thanks

asked by: Tim