Even if it's not a perfect solution to your problem, have you tried MUSICOLET on AA and CP, which is much more flexible and effective?
Thanks for the pointer. I've given it a try, and I can create a giant playlist with over 1100 songs, and they seem to play in the right order, at least for the most part. I can pick a spot in the giant playlist, and play from there, and it goes on to the correct next song. This is important because I have two cars that I drive, and I want to play from very roughly half the playlist difference between them. One car will get more time than the other, so one will eventually catch up with the other, but I live with that already.
This may be about the best I can get. With a wireless Android Auto adapter, the pain should be minimal (not having to connect and disconnect the phone all the time).
Thanks again!
Then the only thing (!) making my life incomplete is that I can't see the album art at decent size (say 400x400 pixels) in full colour and contrast. I can have a postage stamp in one Android Auto view, or a full height image in another view, but with the contrast reduced, presumably because that's the only way they could think of to guarantee that you can see the controls (play/pause, track next/previous, and the progress bar).
Ok, but there seem to be hundreds of music play apps, presumably some of them in the Apple Store will have what you need,
@Billy321 . The problem is figuring out which ones are the good ones, with minimal or no adds, minimal bloat, and all the basic features.