Specifically for vehicles equipped with factory MOST Fiber Optic AmplifierRetains vehicle's factory Steering Wheel Controls (if equipped) when installed with a SWC compatible aftermarket radio (Alpine, Clarion, JVC, Kenwood, LG, Panasonic, Pioneer, Philips, Sony, Jensen, Android and off-brand aftermarket radios)Retains factory AUX inputProvides NAV outputs to aftermarket radio (V.S.S., Mute/Park Brake & Reverse)Retains R.A.P. (Retained Accessory Power)Provides 12-volt accessory powerAllows for the installation of aftermarket radio using existing factory wiring and connectorsNo cutting of factory wiring necessary