1.car dvd for Audi A6 wit gps 2.car dvd Audi A6 3.Audi A6 car dvd with gps TV bluetooth radio ipod 4.Audi A6 dvd Car DVD for Audi A6 (1997-2004 ) 7 inch Built-in GPS system1. V-6 disc changer memory(6 disc music can be memory in the unit while you listening the music) 2. Picture in Picture fucntion 3. Three Zone function, listening to Radio/watching GPS image in the front and watching DVD/USB/SD/ ...