The ignition power source of most gm vehicles keep the radio on until one of the doors is opened this is called the rap retained accessory power the gmos 04 is. The ignition power source of most gm vehicles keep the radio on until one of the doors is opened. This is called the r a p.
Axxess Gmos 04 Wiring Diagram With Images Diagram Circuit Wire
Axxess Gmos 04 Class Ii Onstar Interface For Amplified Systems
