So I've been watching this post, Two weeks ago I bought a 2016 LTZ with power sunroof from a local dealer. After inspecting the truck I noticed that the power sunroof and power rear slider didn't work. The truck still has factory warranty till June of this year, so it's the dealers problem. There were a couple of issue's that I wanted fixed under warranty and they agreed and ordered the parts. So I pick my truck up two days ago and the dealer said it was all fixed including sunroof and slider. Before I get out of dealership my sunroof wont close and no power again to rear slider. It's after hours for tech shop so I leave it there inside and explain that the only thing I did after opening the sunroof is put stuff from rental back in my center console. I also mentioned this post that I've been reading, So with that info the tech confirmed the charging pad, sunroof, and power slider are on the same main feed. If you unplug the charging it will still blow main fuse because of a short in the wiring harness. You have to replace the harness or open it up and find the short. Thanks to this post the GM tech found the problem easily and quick. I can post the part # for the harness if anyone needs it.