Infinity INF-BC4 Bluetooth Receiver / Controller with Rotary control Full size radios and receivers don't always fit everywhere you want great sound. Conventional receivers add additional weight, take up space, and are more likely to become faulty in marine and off-road environments. Enter the Infinity INF-BC4 Bluetooth receiver. Small, and a great solution as a stand alone receiver. Only require a 1 3-8" hole for mounting. Has a pair of RCA outputs to go into your amplifier of choice. Pair your BT music device of choice, place your device inside the safety of the glovebox or other waterproof area, and control the volume, play and pause, and skip tracks using the simple controller interface. Great for marine, powersports, golf carts, and any other compact 12v installation requiring a small bluetooth receiver. IPx6 Water resistance rating. Cable Configuration: RED: +12V power supply with 2A fuse BLACK: Negative Ground BLUE: Remote Out with constant 12V Power Supply WHITE/BLUE: Switched / Remote In to turn receiver on with ignition BLACK: Left and Right RCA Connections