Functions: Support TF card, USB flash drive, microphone, Bluetooth 5.0, HI-FI sound. Works on ALL Pioneer radios with CD changer port commonly known as IP-Bus: The Bluetooth module is designed for Pioneer IP-BUS radio. Just plug the black connector into the back socket of your radio. You can just insert this item into the back radio, then connect the red to 12V+, the black to 12V-. Match your phone or tablet to the Bluetooth module. and choose Aux from your radio, then you can use your phone to play music through the car speakers. You can hear the music from your phone/pad/mp3 ( should have blueooth function). Compatible with P series devices, for example: DEH-P2500 R, DEH-P2600 R, DEH-P3500 MP, DEH-P6600 R, DEH-P9600 MP DEH-P3100 , DEH-P4100 SD, DEH-P5100 , DEH-P7100 BT, DEH-P8100 BT DEH-P88RS-II-DEHP88RS, etc Material:ABS color:black Package Contents: 1 * Cable Adapter audio Only the above package content, other products are not included. Note: Light shooting and different displays