bluetooth moduleCar Bluetooth Audio Receiver for Pioneer IP-BUS 11Pin Bluetooth Aux Receiver Adapterfor PIONEER Radio IP-BUS inputMatch your phone or pad to bluetooth module.and Choose Aux from your radio, then you can use your phone to through car speakers.- You can just Insert this item to the back radio then Connect the red wire to 12V+, the black wire to 12V-.Colour: Blackmaterial: plasticCar Bluetooth Audio Receiver for Pioneer IP-BUS 11Pin Bluetooth Aux Receiver Adapterfor PIONEER Radio IP-BUS inputMatch your phone or pad to bluetooth module.and Choose Aux from your radio, then you can use your phone to through car speakers.- You can just Insert this item to the back radio then Connect the red wire to 12V+, the black wire to 12V-.Colour: Blackmaterial: plasticMatch your phone or pad to bluetooth module.and Choose Aux from your radio, then you can use your phone to through car speakers.You can hear music from your phone/pad/mp3(They should have blueooth function).Bluetooth: 4.1+ Compatible models :for PIONEER Radio IP-BUS inputFollowing models reference :DEH-P 2500 R, DEH-P 2600 R, DEH-P 3500 MP, DEH-P 6600 R, DEH-P 9600 MP DEH-P 3100 ,DEH-P 4100 SD, DEH-P 5100 , DEH-P 7100 BT, DEH-P 8100 BT DEH-P88RS-II, DEH-P88RS, etc ...Package Contents:1PCS Bluetooth adapter cableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.