Welcome to our store! 1. Supports Bluetooth 5.0, low power consumption, reliable in use. 2. Easy to install, just plug and play, no complicated tools needed. 3. Allows you to listen to music from your phone/tablet/mp3 player. 4. Used for wireless music transfer, navigation, for Youtube and phone etc. 5. Button control on radio/steering wheel for easy operation. 6. Select playback on the radio and it will start playing automatically. If you change it, it will stop playing. Product Type: Audio Adapter Material: ABS Color: As shown in the picture Bluetooth music adapter: For wireless music transfer, navigation messages, for Youtube and phone calls. Button control on the radio/steering wheel. Playback starts automatically when selected on the radio and stops when you switch to, for example, radio. Speakerphone: Answer/end calls with the forward/backward button. In radio mode, the CD changer must be selected manually, the call is accepted automatically. Supports up to Bluetooth 5.0 for low power consumption Fits: Fits A2 2001-2006 Fits A3 8L 8P 1998-2006 Fits A4 B5 B6 B7 1998-2006 Fits A6 4B C4 S6 2001-2004 Fits A6 ALLRoad 2000-2005 Fits A8 S8 D2 1999-2003 Fits TT 8N 1998-2006 Installation: The adapter is connected hidden at the back of the radio. No extra cables for power supply are required. The included microphone can be optimally placed with a 2.5 m cable. The radio automatically recognizes it as a CD changer, no coding is required. 1 x Blue audio adapter 1 x 20-pin cable 2 x Wrench Your 100% satisfaction is our highest priority. We will provide you with the best possible service. If you find any problems after receiving the product, such as damage, incorrect quantity etc., please contact us immediately and we will provide you with the best solution!