Many issues with Android Auto are related to bad or low-quality USB cables - according to Google, at least. To this end, the Mountain View giant is reportedly preparing a new feature for this service's app that acts to diagnose potential issues with these accessories in the car on its initialization.
https://www.notebookcheck.net/Android-Auto-is-slated-to-upgrade-with-the-ability-to-detect-bad-USB-cables-soon.609232.0.html