Today we drove our Volt 121 EV miles and 2 gas miles. We are still at 89% EV miles so far (lifetime).
We are enjoying android Auto mapping on the big car screen running for a fast cell phone is great.
It pauses the music to tell the directions the resumes it after.
I no car Nav systems do this but Android Auto was not extra cost and works better than any build Nav system I have used. You can use Waze or google maps.