Specifications: Type: Bluetooth AUX in Adapter Cable length: Approx 15cm Transmission Distance: Up to 10m Number of Pin: 11 Pins Installation: 1.Bluetooth module connector: 12V 2.Red cable: 12V + (positive) 3.Black cable: 12V - (negative) Compatible for all devices of the P-series with IP-BUS IN socket. For example: DEH-P2500 R,DEH-P2600 R,DEH-P3500 MP,DEH-P6600 R,DEH-P9600 MP DEH-P3100 UB,DEH-P4100 SD,DEH-P5100 UB,DEH-P7100 BT,DEH-P8100 BT DEH-P88RS-II-DEHP88RS,etc It will not work with:AVH-P3200DVD Features: 1.bluetooth 4.1 version,also support 4.0 /3.0 /2.0 2.Plug the 6-pin connector into the socket back of your radio. 3.Insert this item to the back radio then Connect the red wire to 12V+,the black 4.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. 5.You can hear music from your phone/pad/mp3(They should have blueooth function). Package: 1 x Car BluetoothCable