Mercury Grand Marquis 2002 - Manual (Page 30)

Bass adjust
The bass adjust control allows you
to increase or decrease the audio
system’s bass output.
Treble adjust
The treble adjust control allows you
to increase or decrease the audio
system’s treble output.
Speaker balance adjust
Speaker sound distribution can be
adjusted between the right and left
speakers.
Seek function
The seek function control works in radio, CD or CD changer mode (if
equipped).
BASS
TREB
BAL
Entertainment Systems
30