Adjusting the Speakers
BAL:Press this knob lightly so the knob extends. Turn the knob to move the sound to the left or right speakers. The middle position balances the sound between the left and right speakers.
FADE:
Press this knob lightly so the knob extends. Turn the knob to move the sound to the front or right speakers. The middle position balances the sound between the front and rear speakers.
Push these knobs into their stored positions when not using them.
"For a description of the RPO Code(s) Shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application and ID." RPO Codes