Mauno said:
Apparently if there is faulty or in properly wired trailers a fire in the cab of the truck can result. Not good. Not sure how many have caught fire but I’m sure a few. I would imaging the conditions have to be just right. I can tell you one thing when I mounted my brake controller I noticed they use 14 gauge wire on the harness for the controller and what appears to be 14 for the charge wire to the rear 7 pin. This to me seems very thin for this application. I would always run atleat 12 but prefer 10 with either a 20 or 30 Amp fuse.