Features: 1.Fitment: Car radio audio cable is replacement for A2 A3 A4 TT 2006, replacement for A4 B7 TTs TT A8 R8 A3 CD player. 2.Good Sound Quality: Connected to car stereo via wire harness, no interference and no loss of sound quality, give you a good experience. 3.Function: Bluetooth aux cable match your phone to your radio, allows you to connect an external audio source, more practical. 4.Bluetooth 5.0: Adopt bluetooth 5.0 protocol, backward compatible with 2.0 3.0 4.0 other versions of bluetooth protocol. 5.Easy Installation: Easy to install without any modification, just plug and play, convenient for using, save your time and energy. Specification: Item Type: Aux Cable Adapter_x000D_ Material: ABS_x000D_ Bluetooth: 5.0_x000D_ Fitment: Replacement for A2 A3 A4 TT 2006 onwards with Quadlock connector and AUX button or AUX displayed when scrolling through available sources._x000D_ Replacement for A4 B7 TTs TT A8 R8 A3 CD Player Note: 1. Do not support hands?free call (HFP): Do not support answering/hanging up. Through car radio buttons and steering wheel buttons_x000D_ 2. Bluetooth AVRCP control is not supported: up/next, pause/play, fast forward/fast rewind through car radio button or steering wheel button.