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 Material: ABS Bluetooth: 5.0 Fitment: Replacement for A2 A3 A4 TT 2006 onwards with Quadlock connector and AUX button or AUX displayed when scrolling through available sources. 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 2. Bluetooth AVRCP control is not supported: up/next, pause/play, fast forward/fast rewind through car radio button or steering wheel button.