Plug and Play, easy installation. Just plug the 12pin connector into 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. Note:
1. Please make sure that this connector of 12-pin socket casing fits for your car before you bid
2. Please make sure that this only works with Head Unit with "MODE" button . It's not compatible with old units without MODE button or cassette or Navigation Players.

Applicable models for:from 2003 BMW 3 Series (E90, E91, E92, E93) Allows you to stream your music via the Bluetooth function of the mobile phone / smartphone to your car stereo.in conjunction with:AUX must be selectedor are to be enabled 609 (navigation system) ?SA 650 (BMW Business radio with CD drive) SA 661 (BMW Business radio with CD drive) SA 662 (BMW Business radio)