robl45

I have the nav volume set to around 5 and have the adaptive volume on. I also have the asl set on the radio. Shouldn't the navi mute the radio when it gives directions or at least be smart enough to know that it needs to speak louder? What are my options, not use the radio when I use nav or turn up the volume to 7 on nav so it blasts me out of the car when the radio is turned down? There has to be a better way