So it looks like I will be taking my truck back to the shop that installed my z140 next week, but I'd like to see if yall had any thoughts on this case. I had the unit installed in a 2005 GMC Sierra 2500HD. They used the proper harnesses because I still retain all functionality (OnStar, the door chime through the head unit, etc) The first thing that does not work is the auto dim when I turn on the lights (this thing is bright at night! ) But it seems that a few button lights on my AC unit have now gone out. Also the volt meter in the dash is not reading the proper voltage output. I load
