I have the opposite problem. Since I listen to audiobooks, I lose part of the plot while the nav voice is speaking. The only two ways I've found to minimize the problem is to turn off the audio before every turn or interchange, or to wait until I'm in unfamiliar territory and really need the nav before turning it on. The problem with that latter method is that I usually use Google Maps to set the destination before getting in the car, so if I haven't already downloaded the destination and set it as the new destination, I may have trouble getting a connection to the information center when I need it. I know how to replay the audio I missed, but the controls for that are really slow and clunky. You have to hold down that damn button way too long, and the fragmentary playback you hear while doing so is usually more confusing than helpful. They should find a way to just pause the audio while the nav voice is speaking.