Hummer 2004 H2 User Manual page 46

FM2 Source Shown, Other Sources Similar
e (Audio): Press the Audio hard key to display the
audio menu. Several options are available for
adjustment from this menu.
3-4
Tone: Choose from six available settings to adjust the
tone of the audio system. Use the joystick to move
between Treble, Midrange, Bass, Balance and Fade.
Use the joystick to move each setting to the desired
level.