Plugging fifth wheel into bumper plug?
So on this 2003 GMC 2500HD that I bought recently I was finally installing the fifth wheel hitch and the brake controller, then I cut the tie straps from the wire harness between cab and box to hook u...
Forum Discussion
The plug between the cab and the box is an option that was added when the truck was built. It's included when you buy the camper(slide in) option. I had one in my 2001 and now in my 2011. I ordered it. I use the one in the back and put a pipe wrap on the cord which drapes over the Tgate. The front one is connected and is in the box if needed. When I had my 2001, I used that one exclusively.
