I got a 2017 Mazda 3, all Mazda 3 2014-present with a touchscreen run ARMv7 for the car CMU system.
People have been hacking them to tweak them and re-enable stuff like Wifi-menu, free maps, even a full Android Auto mod.
The idea would be to ssh into the mazda cmu console from the auto.pi and be able to send messages to it by executing the following command: /jci/tools/jci-dialog --title=“AutoPI” --text=“Sample TEXT” --ok-label=‘OK’ --no-cancel.
The CMU also has a Opera browser (The os run on the browser kinda like the old Palm WEBos). So I could build a WebServer on auto.pi and present it to the Touchscreen console of the car.
I’ll keep updating on the progress as soon as i get my AutoPi