REALMEDIA Audi A8 A6 A4 Q7 OEM Digital Touch Screen Car Stereo 3D Navigation GPS DVD TV USB SD iPod Bluetooth Hands-free Multimedia Interface Player +++with REALMEDIASHOP GERMANY Warranty+++
DO NOT PURCHASE THIS ITEM!  Not only is it not compatible with all Q7 models, but the installation instructions are all but completely useless.  I wasted almost $900 buying this junk only to find out it could not be installed by any professional stereo installation company.  The companies I brought it to all laughed at me when I told them how much I paid, then laughed again when I showed them the installation instructions.  After finally finding a company that would at least try to install it (after months 