Feature:1. Fitment: stereo radio cable is a perfect replacement for A B C CLK GL M R Class W169 W245 W203 W209 W164, etc.2. Version: The wireless cable supports 5.0 system, and is compatible with other versions 2.0 3.0 4.0 system.3. Function: Pair your enabled phone or tablet with the module, and you can stream from your smartphone to your car stereo.4. Good Sound Quality: Connect the car audio through the wiring harness, no interference, no loss of sound quality, giving you a pleasant using experience.5. ABS Material: stereo adapter is made of premium ABS material, high temperature resistant, antiaging, wearproof, sturdy and durable, long service life.How to Use:Plug and PlayThe red wire is connected to ACC12V+, and the black wire is connected to GND 12V‑Specification:Item Type: Car ModuleMaterial: ABS + MetalBluetooth Version: 5.0, compatible with other versions 2.0 3.0 4.0 systemConnector: 12pin portFitment:Fit for Audio 20, for Audio 50 APS, for Comand APS (only NTG2)Replacement for W169 A ClassReplacement for W245 B ClassReplacement for W203 C ClassReplacement for W209 CLK ClassReplacement for GL Class X164Replacement for W164 M ClassReplacement for W251 R ClassReplacement for W221 S ClassReplacement for R230 SL ClassReplacement for CL Class 2004-2006 Package List:1 xCar Bluetooth Module