How do you remove the factory radio of a 2002 GMC Envoy?
If the set up is the same as in a 2003 Envoy with the vents directly above the radio, that panel is one piece and should come off by grabbing the top of both vent holes with hands and pulling the panel towards you away from dash. Once panel is off, disconnect wires any wires and panel should completely be removed. Unscrew bolts by factory radio and pull out unit and unplug wiring harness.