This is the way: a Raspberry Pi and a clever approach got Android Auto up and running on the original head unit in a 2012 Honda Civic ...
In theory, getting Android Auto in any car pretty much comes down to a head unit upgrade, as companies like Pioneer, Sony, Kenwood, and Alpine are already offering plenty of options in this regard.
Getting started with Raspberry Pi can be a bit daunting for a newcomer, but these tips will have you on your way to programming fun projects in no time.