Figured I'd come join this and might find some valuable help on this page. I have a 2011 GMC Sierra 1500 and having an issue. I have an emergency light set up that I usually plugged into Body 3 on the Center Instrument Panel Fuse block. Ive had it like this for over a year with no issues affecting any other part of the truck. Truck went into the shop for about a month for body damage repairs and when I got it back my lights weren't working. Any leads on what could be causing the probelm?