I got tired of wondering if I'm gonna scrape the air splitter on the front bumper when parking, so I picked up a camera set at an Amazon returns store for $7 & integrated the monitor into the visor. A mercury tilt switch turns it on when the visor is flipped down & off when flipped up.

I hot glued the frame into the visor, so I made a 2nd version with grooves for extra glue grip, although the smooth one works fine for me.

monitor
https://www.amazon.com/Itomoro-Mirror-Crystal-Baby-Easily-Observe/dp/B07VFWLRLS

tilt switch
https://www.ebay.com/itm/10Pcs-lot-Glass-5mm-Mercury-Switch-Angle-Tilt-Switch-Switches/293690051702