P.S :Only audio playback, can not be steering wheel control, can not be used answer the phone. If you want to open the AUX function, this item needs to modify the code. Note: Select the 5053 into the 5F electronic module, and then select the match 10, into the channel 06, after reading, save the digital 0, the new data 1, and then into the original MMI system, press SETUP+CAR five seconds Enter the green menu project module, find the AMI modified code AMI changed 1/2. Specifications: Microphone Cable Size : 150CM Cable function : the cable is 3G AMI MEDIA BT BT: V5.0 Range: 5m Material: ABS & metal Dimensions: 3x5.3x0.5cm/1.18x2.09x0.2inch Cable length: 150cm Packing List : 1PCS Aux BT cable