Make your car's screen your own, fitted to the firmware it runs.
HULinES is Head Unit Linux Editor Suite: an editor for the aftermarket Linux screens. Upload your unit's firmware, change icons, wallpapers and the boot image, fit the Android Auto and CarPlay settings to your screen, and download a new firmware ready to install over USB.
Every download ships with your untouched original alongside it, and offline recovery instructions. You never end up in a car park with no way back.