Features: *100% brand new and high quality *Made of high quality material, durableand practical to use *The product supports efficient music transmission, version 5.0, compatible with the following versions *Just plug the connector into the socket back of your radio (Nondestructive installation plug) *You can just Insert this item to the back radio then Connect the red wire to 12V, the black wire to 12V-. *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) *Notice:Not support calling function! Specification: *Bluetooth Name: JieRui-BT 5908 *Bluetooth Version: 5.0 *Voltage: 5-12V *Plug: 12-pin Interface Big PlugFitment : Compatible with: Fit for BMW E61 E62 model Fit for BMW (E60) 2004-2010 : 5-Series: 525i, 525it, 528i, 528it, 530i, 530it, 540i, 540iT & M5 (Sedan and Touring) Fit for BMW (E63) (E64) 2003-2010: 6-Series: 630Ci, 630i, 645ci, 650i, M6 (Coupe and Cabriolet/Convertible) Installation Method: The frist step, Remove the CD host player, the large plug into the plug in the back of the corresponding audio interface. This is a Bluetooth cable with a large plug, which can be directly inserted into the corresponding large plug interface of the original car"'"s CD host. The second step, Open the phone Bluetooth, search bluetooth click on the link.Third step, The car CD to switch to AUX mode, you can phone all the sound from the car sound. If you are not sure of your car model or technical issues, you can feel free to