The Ncxus V3 Pro works in my Audi A6 2002 properly. Every now and then it displays in the CD1 "NoCD", nevertheless the CD1 is selected and but also playable, so it is just a cosmetic little problems. Bluetooth connection with my HTC OneX works without problems and I can now via the small device phone now and stream my music directly from your phone. Installation requires separate purchase of (at the Navi Plus RNS-D) 4 release tools. The installation took on with laying the Ncxus the glove compartment about 30 minutes, so it pretty easy. All in all I would recommend this device definitely, because it combines the original structure of the vehicle with new technology!