1Plug and play, just plug the 3pin connector into the socket on the back of the radio, quite easy and convenient for you to use. 2Support Bluetooth 4.0, the car bluetooth module has low power consumption, reliable use. 3Allows you to listen to music from your phone/tablet/MP3 player, they should have Bluetooth capabilities. 4The Bluetooth module is suitable for E39 E46 E38 E53 X5, it must give you an perfect audio experience. 5You only need to plug this item into the rear radio, then connect the red wire to 12V+ and the black wire to 12V?. 6Match your phone or tablet with the Bluetooth module, then select Aux from the radio, and then you can use your phone to play music through the car speakers.1 x Bluetooth AdapterCondition: 100% New_x000D_Item Type: Car Bluetooth Module_x000D_Material: ABS_x000D_Color: As Pictures Shown_x000D_Fitment:_x000D_2002 - 2006 Fit for (E46): 320i, 320ci, 320cic, 323i, 323ci, 323cic, 325i, 325ci, 325cic, 328i, 328ci, 328cic, 330i, 330ci, 330cic & M3 (Coupe, Sedan & Convertible) 09/2002+_x000D_2002 - 2003 Fit for (E39): 525i, 525iT, 530i, 530iT, 540i, 540iT & M5 (Sedan) 09/2002+_x000D_2002 - 2006 Fit for (E53): X5 3.0, 4.4, 4.6, 4.8 and X5 M 10/2002+_x000D_Compatible with:_x000D_From 09/2002, the radio for BM54 board display/navigation system_x000D_Only with optional SA 602/609 1Plug and play, just plug the 3pin connector into the socket on the back of the radio, quite easy and convenient for you to use. 2Support Bluetooth 4.0, the car bluetooth module has low power consumption, reliable use. 3Allows you to listen to music from your phone/tablet/MP3 player, they should have Bluetooth capabilities. 4The Bluetooth module is suitable for E39 E46 E38 E53 X5, it must give you an perfect audio experience. 5You only need to plug this item into the rear radio, then connect the red wire to 12V+ and the black wire to 12V?. 6Match your phone or tablet with the Bluetooth module, then select Aux from the radio, and then you can use your phone to play music through the car speakers.1 x Bluetooth Adapter