i have a 2008 S3 sportback with the non glossy frame sat nav (matt plastic finish) i dont know which version it is or whatever, but just know its an earlier one (later ones have the glossy surround i think!) it has aux in, but i find its not good enough as cant control which track etc and have to been looking down at whatever device is plugged in to change tracks. is there a way to get some kind of ipod or iphone control through this headunit, or impossible? or how about bluetooth streaming through this headunit? also, does anyone know which SD cards will work in the headunit it has 2 slots behind the screen, but ive been told some high capacity ones will not work new to this audi thing, so just getting to grips with it all!