Subaru 2005 Legacy Owner's Manual page 295

Audio
" To change balance control modes
Each brief press of the "BAL" button changes control
modes in the following sequence starting from volume
control mode. (When the radio is first turned on, the
control mode is in the volume control.)
The "BAL" button is used for selecting the following
control modes:
5-40
Control mode
(Range of lev-
els)
Turn
counterclockwise
Fader control To increase rear
(R9 to F9) speaker volume and
decrease front
speaker volume
Balance con- To increase left
trol (L9 to R9) speaker volume and
decrease right
speaker volume
Volume con- For less volume
trol (0 to 40)
Turn clockwise
To increase front
speaker volume and
decrease rear
speaker volume
To increase right
speaker volume and
decrease left speak-
er volume
For more volume