Feature:1. Fitment: The module is a replacement for Q5, for A4L, for A6L, for Q7, for A5, for S5, which is molded and designed depend on the original car data.2. Note: This adapter can only be used to play audio, can not be controlled by the steering wheel, can not be used to answer the phone.3. Excellent Quality: 5.0 version, and compatible with 2.0 3.0 4.0 5.0 other versions of Bluetooth, can support the commonly used MP3, WMA, WAV, FLAC, format, and can support DSD large capacity transmission.4. Installation: Just plug the 6pin and 12pin connector into the socket at backside of your CD player, simple installation with the equipped disassemble tool.5. Operation: Match your phone or pad to module and choose from your radio, then you can use your phone to play music through car speakers.How to Use:Plug and play, 4 pin and 12 pin connectors plug into the back of the CD host connector.Specification:Item Type: Car Bluetooth ModuleMaterial: ABS, metalBluetooth Receiving Range: Approx. 5m/197inCable: Designed for 3G AMI MEDIA BluetoothCar System: Designed for MMI AMI 3G system Fitment:Fits for Q5Fits for A4LFits for A6LFits for Q7Fits for A5Fits for S5Code Modification Method: Select the 5053 into the 5F electronic module, and then select the match 10, into the channel 06, after reading, save the digital 0, the new data 1, and then into the original MMI system, press SETUP+CAR five seconds enter the green menu project module, fin