What do you mean by nothing? Wasn't the plug wired for lights and brake lights by the factory? Did you have to wire the whole 7-way? Nothing wired by factory? Did you wire the ground pin in the 7-way? Did you wire in a brake controller and did you run the blue brake signal from the controller to pin 4 on the 7-way?
Ed & Bev Felker
Retired USAF Col and retired Nurse
Traveling with Lily & Bella ('Teddy Bear' breed)
2015 Vegas 24.1 (E-350)