Features: This cable is with Bluetooth module. Play your music through your JVC head unit (must have JVC J-bus CD changer input) Hear your music with any phone with Bluetooth function. Easily installed in your car Just plug one end of this cable into the CD changer input in the back of your stereo and the two wires with 12V. Control and display remain on the audio device -- the JVC headunit will NOT control or display text. In order to use this accessory, the JVC headunit manual must indicate Aux. input option using a KS-U57 or KS-U58 adapter.