Bluetooth 5.0 Adapter Aux-in Wireless Audio Cable Adapter for Pioneer CD IP-BUS Please activate the correct source (i.e. AUX / EXT / CD-CH) on your headunit for this adapter! Operates on ALL Pioneer Radios with CD changer port commonly known as IP-Bus - The bluetooth module is made for Pioneer IP-BUS Radio - Just plug the Black connector into the socketback of your radio - You can just Insert this item to the back radiothen Connect the red wire to 12V+, the black wireto 12V-. - Match your phone or pad to bluetooth module.andChoose Aux from your radio, then you can use yourphone to play music through car speakers. - You can hear music from your phone/pad/mp3(Theyshould have blueooth function). Compatible for : Compatible with all devices of the P-series, 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 Package Included: 1Pcs Bluetooth adapter (please confirm which style you like ) Only Bluetooth Bluetooth mic