Voltage: 12VSpecial Features: Bluetooth Music Transmitter Receiver & Call AnswerInterface: 16Pin White AUX Input PortInstallation:1. Insert the 16Pin white connector into your car radio 16Pin AUX Input Port.2. Connect the red to your ignition on positive wire (ACC) going into the radios wiring harness and the black to the radio ground wire ( GND ) also going into the radios wiring harness.3. Connect your phone with this device by bluetooth matching.( Password isn't needed when connecting)4. Select AUX on your car radio panel or CD display screen audio source list.5. Play your phone music through car radio louder speaker / answer calls.Compatible with:For Mazda 6 2006For Mazda 3 2006For Mazda 5 2006For Mazda 2 2006For Mazda MX5 2006For Mazda RX8 2006Colour: blackMaterial: ABSPackage Contents:1 * Audio Cable Adapter1 * Bluetooth microphoneOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.