stereo head unit change ?
Has anyone changed out their stock stereo head unit? I have a non iDrive car with base stereo system and am considering changing out the head unit for a nice aftermarket one. Possibly one with a flip out screen with GPS. Anyway, the question is can you do this? How about all the cars computer info that is in the OEM stereo such as MPG and Date/Time and that info ties in to the instrument cluster display. What happens if you go aftermarket with the stereo?