[BLUETOOTH MUSIC STREAMING FOR CAR] This adapter is only compatible with the 2004-2009 Audi MMI 2G system. Not compatible with Volkswagen. It is not compatible with Audi MMI 3G systems. Some 08-09 Audi A4 are also 3G systems (these cars should use 3000A).if you are not sure of your system version,Please contact us. | [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. | [STEERING WHEEL AND ORIGINAL CAR MULTIMEDIA BUTTONS TO CONTROL SONGS] Support steering wheel and original car multimedia button control to switch the previous/next song of music.Let you enjoy music conveniently while driving. | [DISPLAY SONG INFORMATION ON THE CAR SCREEN] Support Apple Music to display song playlist, but only on iPhone. Supports Spotify/Pandora to display the current song information, such as artist, song title, can not display the song list, iPhone and Android phones support both.