Well I'm def gonna give your suggestions here a try since it seems for the most part we have the same setup going minus phones and pioneer model but that shouldn't matter hopefully lol thanks for this I'll let ya know if I got it going
Trying this out again and it's working well so far. Moto Z3 Play fresh after factory reset, rooted with Magisk 22.0.
Installed the latest Android Auto(6.1.610544) and enabled developer mode, checked unknown sources box.
Installed Screen2Auto 3.4.6 and went to Other setting and Clicked the AA Unlock. Reboot phone.(I had issues with this option not being available/not doing anything on my Moto G stylus phone.)
Select apps you want too show up in Screen2 auto settings.
Then installed AA Phenotype patcher, selected screen2auto in apps, and Patched, reboot.
Youtube Vanced(no ads) working, IPTV apps working. Netflix and Direct Tv Apps work, but are in Portrait until a video is actually played(same on the phone, so no way around that.)
Screen doesn't seem to fill my Pioneer NEX all the way regardless of whether I select fit or fill in Screen2Auto settings.
Not sure if I'll mess with removing the AA Bar at the bottom( although it takes up a lot of room.) Don't want to mess with theme settings, maybe an easier fix will be available.