Hummer 2007 H2 Owner's Manual page 246

Setting Preset Stations
Up to 30 stations (six FM1, six FM2, and six AM,
six XM1 and six XM2 (if equipped), can be
programed on the six numbered pushbuttons, by
performing the following steps:
1. Turn the radio on.
2. Press BAND to select FM1, FM2, AM, or XM1
or XM2.
3. Tune in the desired station.
4. Press and hold one of the six numbered
pushbuttons until a beep sounds. When
that numbered pushbutton is pressed, the
station that was set returns for that
pushbutton.
5. Repeat the steps for each pushbutton.
To store an equalization setting to a preset station
perform the following:
1. Tune to the preset station.
2. Press and release the AUTO EQ button to
select the equalization setting.
Once the equalization no longer appears on
the display, the equalization is set for that
preset station.
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Setting the Tone (Bass/Treble)
AUDIO: Push and release the AUDIO knob until
BASS or TREB displays. Turn the knob to
increase or to decrease. The display shows the
bass or treble level. If a station is weak or
has static, decrease the treble.
To adjust the bass or treble to the middle position
while it is displayed, push and hold the AUDIO
knob. The radio beeps once and adjusts the
display level to the middle position.
To adjust all tone and speaker controls to the
middle position, push and hold the AUDIO knob
when no tone or speaker control displays.
ALL CENTERED displays, a beep sounds, and
the display level adjusts to the middle position.
AUTO EQ (Automatic Equalization): Press this
button to select customized equalization settings
designed for custom or talk.
The radio saves separate AUTO EQ settings for
each preset and source.