I use it for ad hoc hands free navigation while driving. It works 60% of the time and I don't have to intervene with my hands. 60% is sort of like a gamble wit

I use it for ad hoc hands free navigation while driving. It works 60% of the time and I don't have to intervene with my hands. 60% is sort of like a gamble with no downside. Do I have to stop the car or can I just set the destination while driving? I would have to stop the car anyway were it not for voice activated commands.