Item Type: Bluetooth Car Kit Model Name: 3pin plug Special Features: Car Aux Bluetooth Audio Cable Item Weight: 0.2kg The Bluetooth module is made for E39 E46 E38 E53 X5. Just plug the 12pin connector into the socket back of your radio You can just insert this item into the back radio, then connect the red one to 12V, the black one to 12V. Match your phone or pad to the bluetooth module. and Choose Aux from your radio, then you can use your phone to play music through speakers. You can play music from your phone/pad/mp3 (must have blueooth function). Compatible for: 2002-2006 for BMW (E46): 320i, 320ci, 320cic, 323i, 323ci, 323cic, 325i, 325ci, 325cic, 328i, 328ci, 32ici, 330i, 330ci, 330cic and M3 (Coupe, Sedan and ) 09/2002 2002-2003 for BMW (E39): 525i, 525iT, 530i, 530iT, 540i, 540iT and M5 (Sedan) 09/2002 2002-2006 for BMW (E53): X5 3.0, 4.4, 4.6, 4.8 and X5 M 10/2002 Compatible with: Radio for map monitor / navigation system BM54 from 09/2002 With option SA 602/609 only