2013 Voltage Backup Camera

I would think it is on the 12 volt circuit labeled Garage on the fuse panel (Circuit K).

I know this is not the answer you are looking for....... but I wired my voyager camera to the clearance lights so when you turn on your running lights it powers up the camera that is a good power source. I installed a blank outlet cover on the inside just below the lights so I can get at the wiring.
But I am not sure if that's how they wired it at the factory??
Just my 2 cents.

I accessed mine (3200) through the light in the back above the bunk and split the power lead and wired in a switch I put on the wall to be able to turn the camera off. Turned out to be a mistake because the camera fogged up. The radio and tv area in the garage area would be the likely spot as it has a constant 12V source for the radio. Sliding out the radio exposes the mess of wiring the factory installed. There is also an access point in our back cabinet that exposes the wiring in the wall. Not sure where it is on a 3600. Hope this helps.