Force Google Maps to use speaker rather than bluetooth while navigating?

[Zerozal]

Is there a way to force Google Maps to use the speaker instead of bluetooth while navigating? I generally listen to the radio in my car, and using bluethooth for directions in Google Maps causes farily long and annoying pauses while the bluetooth activates then deactivates before the radio comes back on, and if the directions are frequent, then it becomes more dead air while bluethooth connects/disconnects than radio!

For some reason, Apple Maps automatically uses the speaker and NOT bluethooth, which is exactly what I want to happen, but Google Maps seems to default to bluetooth. Any ideas?

 

[Mac'nCheese]

That's weird because my iPhone defaults to blutooth when I use apple maps. But at least there is a quick way to switch. My navigon used to be switchable but ever since an update, I can't figure out how to do so.