Cannot get lights on rear view monitor to turn off

There is a video screen for the rear and side view cameras in the dash.

When I shut everything off in the coach, the lights behind the buttons on this monitor do not go out. These are draining the battery!

I've attached 2 pictures. The first one shows the monitor in the dash.
The second is at night with the flash turned off.

Any idea how to cut power to this thing (short of removing a fuse)?

Thanks!

CY

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