Mazda OEM Radio Bluetooth Car Kits, APPS2Car Wireless Music Adapter Digital Music Changer AUX Interface for Mazda 2 3 5 6 323, Miata,RX 8, Protege, CX 7, Tribute, MPV, MX5, BT 50, Premacy, SPD COSY CONTROL SOLUTION - Support Remote Control, Steering Whell Control and Radio Panel Control, for your cosy driving. PREMIUM SOUND QUALITY - Connet via car radio CD changer port,avoid FM sigal noise interference.Bulit-in premium Bluetooth chip transfers CD quality sound.Echo and noise reduction technology for non-stop clear call conversation & dynamic music streaming experience. CLIP ON MICROPHONE - Build-in high performance mic and clip-on design, for your clear hands-free calling and safe driving. EXTRA AUX & USB FUNCTION - 3.5 mm standard AUX function, you can enjoy music from all AUX portable device,like iPod,Mp3,PSP etc. Extra USB function for charging your phone or play MP3 from your USB stick, and enjoy your long time journey. EASY INTALLATION - Plug & play.Plug the kits into the CD changer port,place the Bluetooth controller,pair your device,then enjoy it.