Rear Camera, How does it Work ?

[carguy49]

My question is simple. When you shift into reverse, what happens. Is the camera fed from the backup lights or is there a reverse switch in the shifter that sends a signal to the radio or what ??? I've replaced the camera with no change. I think the problem is upstream somewhere because the screen doesn't change at all. My Outback is a 2013 with HK Nav radio.

 

[piste]

Reverse switch

 

[carguy49]

Reverse switch

Is this part of the shifter, located under the console ?