1993 Buick Regal Owner's Manual - Page 124

Steering Wheel Controls Vol To increase or decrease the volume, press VOL A or AM/FM Press this to chooseAM or FM. v. Seek Press 4 to go to a lower frequency station. Press b to go to a higher frequency station. If your carhas this feature,you can alsocontrol certain functions at the steering wheel. Prog Press 4 or to hear the stations preset on your radio pushbuttons. Press five times to hear them all. On/Off Press ON/OFF to turn the radio on or off. fine Press 4 or b to tune up or down, only as long as the button is held. 122