Exactly. This is a really cool feature, and I'm ashamed to say I owned my M for over a year before I realized I could just turn the radio knob while the voice was speaking. I bet that's his problemKaPH33n wrote:Could you be accidentally adjusting the nav voice volume and meaning to adjust your music? If you rotate the main volume knob during music playback it will change the volume level for music, if you rotate it while the nav voice is speaking you will change the nav voice volume level.