I bit the bullet and put a screen in my dash which gives android auto and in dash navigation, and wired in a full time backup camera that hooks behind the license plate. Quality is excellent. Not quick & easy install, but permanent, and works perfectly.
The new screen has multiple camera inputs so when I get around to it I can also hook up a camera on back of the trailer full time...
Camera is this one:
https://www.amazon.ca/gp/product/B07...?ie=UTF8&psc=1