iPhone default Bluetooth music app How does my iPhone choose which music app to start when I pair with the Bluetooth unit in my car? I'd like it to automatically start Spotify every time, but sometimes it starts playing from the Music app, even if I've used Spotify earlier that day.
I don't know if there would be a way to change the app that plays but maybe in your car's Bluetooth settings there may be an option for disabling auto play.

Not exactly what you're looking for but at least the same song from Music won't keep playing?