Installation: 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. Specification: Color: Black Material: Plastic, Metal Voltage: 12V For Mazda 6 2006 to up ONLY. For Mazda 3 2006 to up ONLY. For Mazda 5 2006 to up ONLY. For Mazda 2 2006 to up ONLY. For Mazda MX5 2006 to up ONLY. For Mazda RX8 2006 to up ONLY. Size Chart: 15x9x2.5cm/5.91x3.54x0.98inch Length of Cable: 150cm/59.06inch Package Includes: 1 Piece of Car Audio Bluetooth Adapter Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!