Android Auto was primarily designed to work with Android smartphones connected to a compatible car's infotainment system. The goal of Android Auto is to provide a safe and optimized interface for using smartphone apps while driving, with the idea that the smartphone is the primary device.
However, using a tablet as a standalone device for Android Auto, replacing the smartphone, might not be a straightforward or officially supported setup. Android Auto relies on the connected smartphone for various functions, including GPS, data connectivity, and more. Tablets typically do not have the necessary hardware (cellular connectivity, GPS, etc.) and software integration to fully replace a smartphone in this context.
Thanks & Regards
David Ricks
App Developer at Appticz