We need pics of the trailer hooked up to the truck to see the color comparison

 

I'm in the process of having my wheels powder coated on the truck and all. I'm trying to get ready for my Memorial Day vacation so its going to be a while but I will get them up.

 

Had the same problem with my F350 for years. The fuse controlling it is the trailer battery coil fuse, or may be called trailer accessory fuse, it was very difficult to tell it was even blown. If you pull rvs you may have blown it they draw a lot of amps if their batteries are dead or if you leave frig or lights on in the rv.