I decided to upgrade the radio in my GMC sierra. The aftermarket radio that was in my truck when I bought it had poor fitment, and did not retain any of my factory steering wheel controls or door chimes. after doing some research I found a plug and play direct bolt in android powered head unit with wifi capabilities made by a company called EONON. the install was pretty simple and straight forward. directions were good and clear. so far the head unit has been working great!! the truck in this vehicle is a 2011 GMC sierra 4x4 but the process should be the same for any 2007-2013 GMC or Chevrolet truck and suv. if you have any questions about the radio or install please ask!!