I don’t think it’s possible unless you get an aftermarket radio with those capabilities. I can listen to movies or YouTube for an example thru my phone via Hulu but can’t watch anything.
You can but you will need to hack your iphone or android and add YouTube or any movie app to your Apple CarPlay or Android Auto drawer so it shows on the screen
We did a cross-country journey using a laptop to play DVDs. Plugged in the sound to the car system. Passenger could watch and listen, driver could listen in good fidelity. It was an OK experience, but for the most part we preferred to look at the scenery and converse.
Seems to me one of my earlier Mustangs allowed DVD movies to play when the car was stationary, prohibited them when moving (or engine running?).