Android Auto now requires at least Android 10.

As spotted by Android Authority, Google’s support page has been updated to remove Android 9 as the previous minimum support requirement. You’ll now need a phone that’s running at least Android 10 to connect wirelessly to your car display, or Android 11 if you’re plugging in via a USB cable. [Link: Android Auto drops Android 9 and 10 as Google confirms new minimum requirements | https://www.androidauthority.com/android-auto-android-11-minimum-requirement-3732760/ | Android Authority]