I got curious so I did some searching:
Wyman divorced Reagan in 1949, Reagan married Nancy Davis in 1952
So not entirely accurate to say he divorced his first wife to marry another (by some accounts, Wyman divorced him and moved on).
That being said, fuck Reagan all the same.
Not a bad idea, I have a cargo van with blocked out rear windows and my back-up camera set to display 24/7 while driving, I find it helpful.
Like the other poster mentioned, I wired to power as opposed to the back up light so it would come on when I press a button rather than when I set it into reverse - but it was an aftermarket camera I installed and not a factory camera.
You may want to see if anyone on a Chevy/GMC truck forum has had luck with the rewiring if it’s factory.
Best of luck!