\nCar Bluetooth Audio Receiver for Pioneer IP-BUS 11Pin Bluetooth Aux Receiver Adapter for PIONEER Radio IP-BUS Input Pair your phone or tablet with the Bluetooth module. and Select Aux from your radio, then can you can use your phone to play music through the car speaker.- You can just insert this item on the back of the radio and then connect the red wire to 12V+, the black wire to 12V-.Color: Black Material: Plastic Pair your phone or tablet with the Bluetooth module. and Select Aux from your radio, then you can use your phone to play music through the car speaker. You can listen to music from your phone/tablet/mp3 (they must have Bluetooth function). Bluetooth: 4.1+ EDR Compatible models: for PIONEER Radio IP-BUS input Following 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 UB ,DEH-P 4100 SD, DEH-P 5100 UB, DEH-P 7100 BT, DEH-P 8100 BT DEH-P88RS-II, DEH-P88RS, etc ...Package Content: 1PCS Bluetooth Adapter Cable Only the above package content, other products are included Note: Light photography and different displays may cause the color of the item in the picture a little different from the real thing. The permissible measurement error is +/- 1-3 cm.