Not that I know of... Not from one device anyway. If you had a tablet or other phone, you could pandora through that via bluetooth, then have the turn by turn from your main phone go to a bluetooth ear piece that only you hear.
Quite frankly, I find the turn by turn to be annoying, so I just turn it off.
Quite frankly, I find the turn by turn to be annoying, so I just turn it off.