Alright new to all of this, but damn it's cool. So here's my newbie question: I have a 08 Armada and it has the Bose Stereo, no navigation, the a/c display and radio channel is on the screen, along with tire pressure, trip info. So is there a way I can change the screens to a touch screen for the pc and still be able to see a/c controls, trip and tire info. Can i use a input switch on the monitor? I want to keep the stock look without adding another monitor on the dash. One more question. Is there a way to add two more screens to the back of the headrest for a total of three screens. All being controlled by one computer? Thanks for the help.