Looks like since 2014 and 2017 GMC decided to move the plug harness. It's now up in the back drivers side corner of the box. AND..... with theses new 18" monster tires they now have on them ( not sure how big your tires are) the side spare tire is right up against the plug harness.
When I first went to remove the tailgate / Camera I researched on line how it is done because GMC doesn't tell you in the owners manual. There were all sorts of comments on just removing the license plate to get at the plug...... welll not of the 2017...... it's a freaking pain farting around all the time doing this. If I could find a short extension with a male / female GMC connectors.... THEN.... I could put the plug behind the license plate..... you lucky dog you..... ( grin)
Soup
