[trodecke]

I can't speak for Apple Music as I'm an Android type of person but I've run into the same issue in the past. On Android, it's a setting within the app you're using. For me, the latest culprit was Youtube Music but it's moved around. On Android there's a setting that's labeled "Allow external devices to start playback". It mentions Bluetooth and wired headsets as examples. With that enabled, whenever my phone would connect to the BT in my Camaro, it would launch Youtube Music and start playing. Disabling that setting stopped the problem. Like I said, I'm an Android type of person so I'm not sure if there's a similar setting on Apple devices so your milage may vary.