Welcome to our store! 1. You simply connect the 12-pin connector to the socket on the back of your radio. 2. You can just insert this item into the back of the radio and then connect the red wire to 12V+ and the black wire to 12V-. 3. The product can match your phone or tablet to the Bluetooth module, and select Aux from your radio, then you can use your phone to play music through the car speakers. 4. The cable can help you hear music from your phone/tablet/mp3. 5. The audio cable is suitable for E60 E61 E63 Item Type: Audio Cable Fitment: Fits for E61 E62 model Fits for (E60) 2004~2010 : 5 Series: 525i, 525it, 528i, 528it, 530i, 530it, 540i, 540iT & for M5 (for Sedan and for Touring) Fits for E63) (E64) 2003~2010: 6 Series: 630Ci, 630i, 645ci, 650i, M6 (Coupe and Cabriolet/Convertible) Fits for COOPER 2000~2006 : for COOPER (R50), for COOPER S (R53) & for JC WORKS (Coupe & Convertible) Fits for One, One D, for Cooper & S Fits for 5 Series (E39) Fits for Z4 Series (E85) Fits for X3 Series (E83) Fits for X5 Series (E53) In conjunction with: 609 (navigation system) SA 650 (Business radio with CD drive) SA 661 (Business radio with CD drive) SA 662 (radio business) Radio Boost compact disk 53 / Business compact disk from 09/2002 1 x Audio Cable Satisfaction Guarantee: Customers are our top priority. If you find any problem with the product, please contact the seller immediately. We strive to provide satisfactory customer service.