CRUX SOCGM18B Radio Replacement Interface for Select GM LAN 11Bit Vehicles

Radio replacement for gm LAN 11-bit systems/ the Crux SOCGM-18B retains general motors factory-featured safety and warning chimes -for installation of After-market radios. It provides 12 Volt Accessory Output (4 amp), including RAP (retained Accessory power), illumination Output (2A. Max), telephone negative mute trigger (Output to new stereo), low voltage (battery run-down protection), and adjustable Chime volume.