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      Audio equipment       Volume increase/ 
decrease. 
 On.   Off. 
  Mute on/off. 
 Selection of the CD/CD MP3 source. 
 Use the left/right arrows to select the 
previous/next track.  Use the left/right arrows to fast forward/
backward playing of the current track. 
 In CD MP3 mode: use the up/down arrows 
to change folder.   Setting the audio options: bass, treble, fader (fr
ont/rear), balance (left/
right), loudness, EQ Preset (equaliser). 
 Use the up/down arrows to select the option. 
 Use the left/right arrows to increase or decrease  the value of the option 
or change the equaliser. 
  Access to the menu. 
 Use the up/down arrows to 
select one of the following 
functions: