Here is a Magisk Module to run Android Auto on the Cat.
After Installing the Module: Restart the phone, update Android Auto from the play store, then go to Settings > Apps > See All Apps > Android Auto > Permissions and Allow all Permissions, then go to Settings > Apps > Advanced > Special App Access > Notification Access and allow Android Auto
Before Removing the Module: You need to uninstall Android Auto Updates or you will be stuck in a bootloop and need to Factory Data Reset. To uninstall go to update Android Auto from the play store, then go to Settings > Apps > See All Apps > Android Auto > 3 Dots (top right) > Uninstall Updates
Thanks to @ekjr for figuring out the low_ram fix and getting Android Auto to work!