1. The Bluetooth module is made for Alpine for Pioneer to better meet your needs. 2. Simply plug the 2RCA connector into the socket on the back of the radio, then connect the red wire to 12V+ and the black wire to 12V‑. 3. Match your phone or tablet to the Bluetooth module, then select Aux from the radio, and then you can use your phone to play music through the car speakers. 4. Made of high‑quality ABS material, hard, , and long service life. 5. Small, exquisite, well‑made, and with better performance. Light in weight, makes it easy to install. Spec: Condition: Item Type: Bluetooth AUX Module Material: ABS Color: Black Compatible with: Radio for 2 audio ports (left channel, right channel). Connect Method: Simply plug the 2RCA connector into the socket on the back of the radio and connect the red wire to 12V + and the black wire to 12V-. PackageList: 1 xBluetooth AUX Module 1 x Earphone Mic Notice: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.