Android Headunit won’t work
Unfortunately the process com.google.process.gapps has stopped is a message that may appear on the screen of your android headunit that can stop you from using it.
A hard reset is often suggested first for all the odd software faults that appear on the android headunits and this com.google.process.gapps stop error is no exception.
Google has a suggestion
Hello,Try the troubleshooting tips: Re-enable Download Manager
Reset app preferences: Tap on Settings > Apps/Application manager > More tab/Menu key > Reset app preferences
Clear the cache/data for the following apps/services:Google Play Services, Google Framework, Google Play Store: Go into the Settings menu > Apps/Application manager > select the App > Force stop > Clear Cache > Manage space > Clear all data.
Uninstall updates for the Google Play Store. Go to Settings menu > Apps/Application manager > Google Play Store > Uninstall updates.https://support.google.com/googleplay/thread/16561909/getting-process-com-google-process-gapps-has-stopped?hl=en
Updates may be ‘stuck’. The order that some system apps need to be updated are very important to ensure the process goes smoothly. When the update process gets out of sequence some apps may be updated too soon and other too late causing a conflict and incompatibility between processes. ‘Uninstall updates’ referred to above is to help alleviate this conflict by resetting the update process. You may have to manually hold back some system updates while allowing others to complete first. It will be a trial and error process until the order is correct and the error message clears for good.
When all else fails
But if all this resetting and cache clearing doesn’t fix the com.google.process.gapps has stopped error, you may think about the real android version it is running. Very old (in android terms) android versions are unable to update google play services and you may come to the conclusion that the unit is now obsolete in its own software.