Does anybody know of a fuse or relay that controls one side of the trailer wiring on an 05? The truck lights are OK, it's just the trailer connector that has no power. I have the BT package, so the wiring is all factory. My little trailer seems to have developed some kind of wiring problem, after a long trip after dark, the 10A fuse for the running lights is often blown. After the last time I took it out, the left turn doesn't work. It did before towing, I always check the lights.