The Jag Den

Holla Den, Cubist took a look at my enquiry and suggested I picked your brain and Raistlin's. Mine's a 2003 S Type without the optional NAVIGATION SCREEN. I don't need the sat nav to move around and so would not need any Fiber or cable connection to the trunk, but I'm a lover of touchscreens and would like to know if I could just buy the OEM navigation Screen (I know after market screens are available, but I prefer the OEM screen, even though it would be very expensive) and re-fit it into mine, just for the aesthetics, the climate controls, and the stereo. I have seen that it's geometrically compatible, but would it work without any additional programming? Like I said earlier, I'm not bothered about the satellite navigation, and would not bother about the connection to the trunk for the navigation disc, I'm just cool with the touchscreen and controls on it, I would be very glad to do away with these two boring vertically arranged LCD screens. Please help.