PAC C2R-FRD1 Radio Replacement Interface for Ford(R)Provides navigation trigger wires & timed accessory output for replacing factory radio Retains the factory installed amplified audio system & rear seat entertainment & dual zone audio (if equipped) Provides data controlled RAP accessory output, parking brake, reverse trigger, vehicle speed sense & illumination output wires Steering wheel interface module should be used to retain function of all factory controls Requires MS FRD1 (not supplied) to