Navigation volume changing on its own (Infotainment Nav & Google Maps)?
 

I don't like my music constantly being interrupted by navigation voice notifications (turn right in 500ft, turn right in 400ft, turn right in 300ft.....OK I GET IT), so I turn them off. Google Maps, Apple Maps, Waze, Infotainment Nav. All off.

1-2 times per week since October (minus 4 months while living abroad), I notice my music gets interrupted and discover the navigation has somehow turned itself back on and at the quietest setting. I've noticed this with the Infotainment Nav and Google Maps (over CarPlay) since those are the two I use most frequently. Other system volumes might also be affected but I haven't noticed.

Does anyone else have this issue? Is there any way I could be inadvertently be triggering this?

Side Rant: I updated to the latest firmware a few weeks ago once I returned to the U.S. and the entire infotainment system seems to have slowed down tremendously. It takes forever to boot, switch screens, start nav directions from a home screen shortcut.

Not sure if this applies to your specific situation, but navigation audio is playing (including Carplay), then immediate use of the volume control will affect the navigation audio level. You can tell by the navigation icon under the volume indicator.

So there have been several times that I have inadvertently changed the navigation volume without meaning to.

Not sure if any of this is applicable if you have navigation volume at zero.