Small update... The head unit itself is pretty awesome, in the guage mode, it will tell you several things; air intake temp, G-force, and several other things that I have'nt looked into too much. A couple of things I have noticed though are: the screen sits about an inch lower than the stock nav. I will get out to get a pic soon. The AC controls and radio controls are all one piece. Below is a couple of pics. My plan was to just unplug the ribbon cable and cut the plastic between the circuit boards. So I unplugged the ribbon cable and did a test run. Everything worked like it was supposed to, EXCEPT the little indicator lights on the buttons did not work. Not that big of a deal, but I want them to work so I will have to make something up. I will still have to cut the plastic just above the AC controls to make room for the radio, I just need a way to keep the other board plugged in and protected.