1999 GMC Sonoma Owner's Manual - Page 131

yellowblue AM-FM Stereo Playing the Radio VOLUME: This knob turns the system on and off and controls the volume. To increase volume and turn the radio on, turn the knob clockwise. Turn it counterclockwise to decrease volume and turn the radio off. RECALL: Display the time with the ignition off by pressing the recall knob. When the radio is playing, press this knob to recall the station frequency. Finding a Station AM-FM: Press the lower knob to switch between AM and FM. The display shows your selection. TUNE: Turn the lower knob to tune in radio stations. SEEK: Press the right arrow to tune to the next higher station and the left arrow to tune to the next lower station and stay there. SCAN: Press both SEEK buttons to listen to a few seconds of each radio station. SCAN will light up on the display. Press the right arrow to tune in the next higher station and press the left arrow to tune to the next lower station. Press VOLUME or both SEEK buttons to stop scanning. PUSHBUTTONS: The four numbered pushbuttons let you return to your favorite stations. You can set up to 14 stations (seven AM and seven FM). Just: 1. Turn the radio on. 2. Press AM-FM to select the band. 3. Tune in the desired station. 4. Press SET. (SET will appear on the display.) 5. Press one of the four pushbuttons within five seconds. Whenever you press that numbered button, the station you set will return. 6. Repeat the steps for each pushbutton. 3-7