Audio Output Channel

davea66 Registered Users Posts: 7
Apprentice Traveler

Could someone please explain the different options for audio output?
I use my phone as a bluetooth music player in the car also and when doing so the voice guidace plays over the music which is great.
However if I am not listening to bluetooth music obviously I cannot hear the voice guidance.
I would like to play the Tomtom voice guidance only over the phone speaker so that it doesn't matter if I am listening to the radio, or maybe the Wife's music player :)
Not sure which option I should be choosing as the output channel.
Samsung Galaxy s9
Any help appreciated!