I called the maker of the multi-camera controller this morning. Good news for me, the controller does indeed power the cameras. So all I need to do is put in a switch and a "towing diode" to the backup camera trigger wire. The diode will take two inputs, the backup input and the switch input and will output one trigger signal to the CSW3 multi-camera controller. The diode prevents the signal from the switch from back feeding to the backup signal input.
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Tom & Ellen
NE Oregon
"The Tipsy Whale"
2015 Thor Windsport 27K
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