After arriving at the campground I noticed there was a tear on the power cable that plugs into the truck. It looked like a clean cut and maybe two wires are severed. A quick check showed that my left signal was not working. My best guess is the cable got between two moving parts on the hitch while I was making a sharp turn and pinched it? I don't know. What are my options? I'll check the owners manual to see what wires I need. I just wonder if I need it. Can I cut and reattach?