Mazda 2008 Mazda6 Owner's Manual page 213

2. Turn the audio control dial to adjust the
selected functions as follows:
Indication
NOTE
About 5 seconds after selecting any mode, the
volume function will be automatically selected.
To reset bass, treble, fade, and balance, press
the audio control dial for 2 seconds. The unit
will beep and "CLEAR" will be displayed.
Automatic Level Control (ALC)
The automatic level control is a feature
that automatically adjusts audio volume
and sound quality according to the vehicle
speed.
The volume increases in accordance with
the increase in vehicle speed, and
decreases as vehicle speed decreases.
The following four modes are available.
Select the desired mode.
Mode
Turn Left Turn Right
Select mode
Decrease Increase
bass bass
Decrease Increase
treble treble
Shift the Shift the
sound to the sound to the
front rear
Shift the Shift the
sound to the sound to the
left right
OFF ON
Volume change
No change
Minimum
Medium
Maximum
Turn the audio control dial to select ALC
OFF or ALC LEVEL1―3 modes. The
selected mode will be indicated.
BEEP setting
The beep-sound when operating the audio
system can be set on or off.
Interior Comfort
Audio System
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