So I have done that by disconnecting the accessory wires at the switches with no luck. When I disconnect J3 connector in the electronics bay the fuse does not blow. My problem seems to be the orange wire common to pin 5, J3 connector. That orange wire goes from the KIB circuit board, into the coach, back to the electronics bay and to the relay board via a connector. When I disconnect the connector at the relay board I still blow a fuse. So the short is between J3 connector, pin 5 to before the momentary switches.
Now, if I just had a schematic to show me where pin 5 terminates....