Metra AXDI-GM4 AXDI-GM4 GM Chime Interface 2000-2005

AXDI-GM4 GM Chime Interface 2000-2005 Axxess AXDI-GM4 aftermarket radio data interface designed for select General Motors 2000-2005 models. It allows you to replace your factory radio with an aftermarket unit while retaining several important factory features and functions. This interface provides Navigation outputs required when installing a Navigation radio. This interface will also retain the Accessory power (12volt 10 amp). Used in models without OnStar® or when not retaining OnStar®. Provides accessory power (12-volt 10-amp) Retains R.A.P. (Retained Accessory Power) Provides NAV outputs (parking brake, reverse, and speed sense) Used in non-amplified models, or when bypassing a factory amplifier Used in models without OnStar® or when not retaining OnStar®