Android Auto can be expanded through the installation of third-party applications, allowing users to go beyond its default navigation and media functionalities. To sideload apps, users must enable Developer Mode on their Android device and for Android Auto, then install the Android Auto Apps Downloader (AAAD) from a GitHub page. Notable third-party apps include CarStream, which allows YouTube streaming while driving, AAMirror for screen mirroring, and Fermata Auto, which supports various multimedia functions. However, sideloading raises safety concerns and may lead to issues with app functionality due to updates from Google.