Garmin aera 500 Series Pilot’s Guide190-01117-02 Rev. A 25Overview Overview GPS Navigation Flight Planning Hazard Avoidance Additional Features Appendices IndexSound SetupAdjusting the sound:1) From the 'Home' Screen, touch Tools > Setup > Sound.2) Touch the buttons to adjust the sound.Or:Touch the Icon to mute the master, Alerts, or media audio. A blue'X' will appear over the icon.Or:Touch the 'On/Off' Data Option Button to toggle Terrain Audio, TIS Audio,or Key Tones on or off.Or:1) Press the POWER Button to quickly access the master volume/mute.2) Touch menu > Sound Setup to access ALL volume settings.muting sound:See the ‘Adjusting the Sound’ procedure above.