KingInstaller — Open Source Productivity App

KingInstaller lets you install packages "as Google Play Store", to work around restrictions. Useful (not only) for Android Auto.

Once you have this app installed, you need to grant it two permissions from within Settings › Apps: the permission to Allow access to manage all files (via Special app access › All files access › KingInstaller), and via all apps › KingInstaller › Install unknown apps check Allow from this source.

Usage

1. If the .apk is already installed: Uninstall it first
2. Open KingInstaller
3. Click Select file ... and select the .apk to install.¹
4. Click Install as king¹
5. Wait for text-field with .apk file-path to clear
6. Validate if package installed "as Google Play Store"¹

¹ For optional settings, as well as the verification steps, please see the app's repo.