I have a 2016 Denali 2500. My brother tried plugging a compressor into the 110 VAC inverter port in the cab. It blew a fuse, but I cannot find which one. I have gone through the left and right side in cab breaker panels and the owners manuals, as well as the duramax supplement. I cannot find a blown fuse. But the cigarette lighter ports, and the two USB ports under the stereo are not working either. Any ideas?