[BLUETOOTH MUSIC STREAMING FOR CAR] Bletooth adapter for Audi, Mercedes, Volkswagen AMI/MDI/MMI connectors.Compatible for Audi Concert/Symphony , Audi MMI 3G, 3G+ from 2009 year+. VW RNS 510, VW 3G for RNS 315, VW Premium 8 systems from 2009 year+. Mercedes 2005-2011 year. NOT compatible for 2004-2009 year Audi MMI 2G. [UPGRADE BT 5.0 FOR BETTER SOUND QUALITY] Use expensive Qualcomm CSR8675 chip for better sound quality experience.Support 24Bit audio processing and 120MHz DSP, support APTX, APTX-LL, APTX-HD high-quality transmission format. [PLUG, PAIR and PLAY] Insert the adapter into the AMI / MDI connector and connect to our Bluetooth with your mobile phone to play music. The setup is very simple. Our adapter only has Bluetooth music streaming and does not support phone calls, But you can solve this problem by connecting the adapter's Bluetooth and the car's Bluetooth phone to your mobile phone at the same time.