I had the GM oem touchscreen in my Avalanche and would not go back to one...they use dvd based maps/navigation which is soooooooo slow compared to the new ones out there that are hard drive based....plus you you have to buy a new disc to update where the hard drive ones allow you to do updates from your computer. You can't easily ad option such as rearview camera, bluetooth tech etc with the oem GM touchscreens. just my
