Mazda 6 Manual page 311

Interior Features
Audio System
NOTE
If not operated for several seconds, the display
returns to the previous display. To reset bass,
treble, fade, and balance, press the menu
button ( ) for 2 seconds. The unit will
beep and "CLEAR" will be displayed.
ALC (Automatic volume adjustment)
The automatic level control (ALC)
changes the audio volume automatically
according to the vehicle speed. The faster
the vehicle speed, the higher the volume
increases. ALC has ALC OFF and ALC
LEVEL 1 to 7 modes. At ALC LEVEL 7,
the amount that the volume can increase is
at the maximum. Select the mode
according to the driving conditions.
BEEP (Audio operation sound)
The setting for the operation sound when
pressing and holding a button can be
changed. The initial setting is ON. Set to
OFF to mute the operation sound.
BT SETUP mode
Music and other audio such as voice data
recorded on portable audio devices and
mobile phones available on the market
®
which are equipped with the Bluetooth
transmission function can be listened to
via wireless transmission over the
vehicle's speakers. Using the BT SETUP
mode, these devices can be programmed
®
to the Bluetooth unit or changed.
Refer to Bluetooth® Preparation (Type A)
on page 5-71.
12Hr 24Hr (12 Hr/24 Hr time
adjustment)
Rotating the audio control dial switches
the display between 12 and 24-hour clock
time.
Refer to Clock on page 5-24.
5-23