Can you clarify? Does it feed it bullshit data? Because android auto expects car telemetry data which it streams to Google's servers. Which is a big no-no for me for obvious reasons.
You can also "firewall" AA via something like TrackerControl, this would let you block connections to eg. Google Analytics servers without denying network access altogether (which would likely cause AA to stop working). I've only used AA with short-term rentals so I didn't spend too much time exploring these options.
not sure if this was caused by an OS update or an AA update because im certain it used to work fine
(not graphene, but friends otherwise stock samsung android)