Android Auto app
XLauncher Unlocked is a custom launcher for Android Auto which will unlock more features in your Android Auto app. It can launch existing / hidden Android Auto screens with root / ADB commands. Classic can be launched without root.
If using the Xposed module, then it will also hook into an existing Android Auto function, to run some additional code behind it, to make some of the "installed as Google Play" checks always come back as valid, which does not modify the AA app itself.
Due to the nature of the implementation of the features, you should not have to be afraid of "having to wipe AA data to test". Because no AA data is touched / no AA files are edited in a persistent way.
NOTE: Magisk (with Zygisk enabled) and the non-FOSS KingInstaller are required to make this work. Installation instructions (in the repo's Readme) also mention you should install LSPosed (Zygisk) + Shamiko.