Hi, I joined this forum for the express purpose of thanking MotoMedic for this great write up. Thinks to his DIY post, I just finished installing one of these on my 2015 Silverado 3500 Dually. I will say that if you have a crewcab with a long box, don't waste any of the wire when routing because you have just enough - unless you spool out some of the tailgate wire, which could mess you up if/when you need to remove the tailgate. Pops&Locks should throw their instructions away and pay David to use his write up. It's much better! Thanks.