[UPGRADE YOUR CAR WITH BLUETOOTH MUSIC STREAMING] Special designed for 2004-2009 year Audi MMI 2G system. Doesn't work with 2010-2020 year Audi. Doesn't support phone call. [PLUG, PAIR, PLAY] Just plug our adapter into 30 pin iPod cable which is factory installed with AMI/MDI connector usually found in glove box or center console. Enjoy bluetooth music streaming, no more installation required. [SUPPORT STEERING WHEEL SONG BUTTON CONTROL] Using steering song buttons to control music previous/next tracks. [SUPPORT HEAD UNIT RADIO BUTTON CONTROL] Using head unit radio buttons to control music. Only support Apple Music playlist display, NOT support Spotify/Pandora playlist display. Song information display is ony supported for iPhone, NOT supported for Android. [POWERED BY QUALCOMM CSR8675 CHIPSET] Adopted powerful Qualcomm CSR8675 chipset for better sound quality experience. Support 24Bit audio processing and 120MHz DSP, support APTX, APTX-LL, APTX-HD high-quality transmission format.