[95 S_Trucker]

There should be a 7 pin trailer harness installed from the factory. It will be taped up along the frame or above the rear bumper. You can wire your 7 pin connector to these wires. The blue wire(for the trailer brakes) and the red wire(12v+) start in the engine compartment. They should be taped to a wire harness near the underwood fuse box. The red wire gets attached to the positive stud in the fuse block, the blue wire will go to the brake controller.