Allows for the installation of an aftermarket radio in vehicles that are equipped with a factory premium / amplified sound system (i.e. Rockford Fosgate, Bose, JBL, etc.)Plugs into vehicle's factory amplifier located behind the glove boxProvides power and sound signals from the vehicle to the new aftermarket radio bypassing the factory amplifierCutting of vehicle's factory wiring and connectors is not necessaryFunction color-coding provided for simple installation