Pioneer CD-BTB200 If you have an IP-Bus connection on your Pioneer car audio system (and you'll know if you do when there is a letter 'P' in front of the numbers in the model number; for example DEH-P7900UB), you can now enjoy
the freedom of using your mobile phone in-car, without the wires, car kits or headsets.

This Adapter enables you to make and receive calls and also incorporates the audio profile, which allows audio streaming from any Bluetooth mobile phone or portable audio player.