Provides accessory power (10-amp) Provides wires for multimedia radios (park brake, reverse, speed sense) Retains audio controls on the steering wheel Can be used in both amplified and non-amplified models Retains balance and fade (non-amplified models only) Designed to be compatible with all major radio brands Auto detects vehicle type, radio connection, and preset controls Ability to dual assign steering wheel control buttons Retains memory settings even after battery disconnection or interface removal (non volatile memory) Provides illumination output Micro-B USB updatable