If you're not a fan of Apple Music's Auto mode, which automatically starts playing music after your vehicle is turned on, it's easy to disable. Here's how:
1. Open the Settings app on your iPhone.
2. Tap General > CarPlay > My Car.
3. Under Audio Settings, turn off the switch for Start Music Automatically.
Now, when you get in your car and connect it to CarPlay, Apple Music will no longer start playing automatically. If you ever want to enable Auto mode again, just follow the steps above and turn on the switch for Start Music Automatically.