If there is MMI socket,our bluetooth module work. Just plug the MMI connector into the socket back of your radio. Pair your phone or mp3 or pad with bluetooth to the module, this name: It is bluetooth 4.1 version, not need password when connecting. Choose AUX from your radio and you can from your phone in your car. Match your phone or pad to bluetooth module.and Choose Aux from your radio, then you can use your phone to through car speakers. You can hear music from your phone/pad/mp3(They should have blueooth function). Note: Only audio playback, can not be steering wheel control, can not be used answer the phone. Plug & Play Bluetooth: V4.1 Supported Bluetooth profiles: A2DP (audio transmission) Set up with auto-pairing in a minute Existing CD changer can still be used Function via Bluetooth-enabled devices Compatible with: for (fit for 2009 and UP Model!!!!) C class 2010 E class (W212 / S212) M class R class S class and others with the special equipment Media Interface (Code 518) Note:Pls make sure your car has MMI socket!!! Colour:Black Material:Plastic Package Contents: 3 * AUX audio cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.