Rear camera not working

I am helping a friend with his 2003 Winnebago Adventurer 35U. He said his rear camera quit working. I checked and found no power coming to the monitor. Inline fuse was good so I made a jumper and applied power directly to the monitor and the camera/monitor works fine. I downloaded the Winnebago schematics and started looking for the power source for the camera system. The power should be on the "KE" wire. I found this wire also supplies power to the antenna reminder module, jacks reminder module, the rear coach heater and Kwikee activation. All of which are not working either. The KE wire should come hot whenever the ignition switch is in the on position. The engine starts and runs fine but downstream of the engine ignition, there is no power. I am guessing the ignition must toggle a relay somewhere to drive the downstream devices with a fuse or circuit breaker inline somewhere. I need help finding that relay and or fuse. I have checked every fuse and CB in the coach in the coach both electrically and physically. Does anyone know where to continue looking? Thanks! BTW, if you want to be part of this treasure hunt, here is a link to the drawings. Winnebago 2003 Adventurer 35U Schematics