Just plug the connector into（ACC/GND）AUX the socket back of your radio | You can just Insert this item to the back radio then Connect the red wire to 12V+, the black wire to 12V-. | bluetooth 5.0 version, also support 3.0 /2.0, fits WMA, WAV, FLAC. | Choose AUX from your radio and you can play music 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 play music through car speakers. You can hear music from your phone/pad/mp3(They should have blueooth function)./ | If you have any problems, please feel free to contact us.

Listen to content from your Bluetooth capable device over your car's stereo system using the Bluetooth adapter.Works with any Apple/Android phone | This Buletooth adapter fits Audi and VW group cars with AMI or MDI port with 2G + AMI MMI.,Concert and Navigation Plug models | Activate the AUX mode in the MMI system and connect your smartphone with this bluetooth adapter, then you can listen music via the car stereo. | For Bluetooth mode,you can only change songs from the smartphone, no control over music from the MMI system.The playlist will not be displayed on the scree