1、Fitment: The Bluetooth module is specially built, replacement for A8 TT R8 A3 A4 RNS‑E Navigation, replacement for Gallardo, replacement for TT 2001‑2002. 2、Operating Guide: Match your mobile phone or tablet with the Bluetooth module, and select Aux from the radio, then you can use your phone to play music through the car speakers. You can listen to music from mobile phone, mp3 (they should have Bluetooth function). 3、Easy to Operate: Just plug the 32‑pin connector into the socket on the back of the radio, and no password is required for connection. 4、Support Bluetooth Version: Support Bluetooth device operation, Bluetooth 5.0 version, there is no functional limitation of car radio, allowing you to connect external audio sources. 5、High Reliability: The manufacturing conforms to the standard specification, can realize a perfect match with your car audio system.