com.mcu , com.canbus , com.android.phone , or com.ts.main (this controls the sleep/wake function).
Many head unit firmwares run as "root" by default over ADB connections, even if user apps cannot access it. Test this by running: adb root Use code with caution. how to root android car stereo
Android car stereos are highly fragmented. They rarely use stock Android builds. Instead, they run custom software tailored to specific System-on-Chip (SoC) architectures. Navigate to or Settings > System Info and document: tap Revoke USB Debugging Authorizations
Unplug the USB cable. Go to Settings > Developer Options on the stereo, tap Revoke USB Debugging Authorizations , turn USB debugging off, turn it back on, and reconnect the cable. Issue 2: Head Unit is Stuck on the Boot Loop Logo turn USB debugging off