2004 Pontiac Bonneville Owner's Manual - Page 197
2004 Pontiac Bonneville Manual
Page 197 highlights
Setting the Tone (Bass/Treble) TONE: Press and release this button until BASS, MID, or TREB appears on the display. The SELECT LED indicator will light to show that the tone control can be adjusted. Turn the SELECT knob to increase or to decrease. If a station is weak or noisy, you may want to decrease the treble. To adjust all of the tone controls to the middle position, press and hold TONE until FLAT appears on the display. EQ (Equalizer): Press this button to select customized equalization settings. You can set up to six customized equalization settings by performing the following steps: 1. Turn the radio on. 2. Use the TONE button and the SELECT knob to create the desired equalization. 3. Press and hold the EQ button for two seconds. SELECT EQ # will appear on the display and the EQ symbol will flash. 4. Press EQ or turn the SELECT knob to select the desired EQ number. 5. Press and hold the EQ button or push the SELECT knob to store the equalization setting and the number. You will hear a beep and EQ SAVED will appear on the display. 6. Repeat the steps for the other EQ settings and numbers. EQ 5 has been programmed at the factory for use with talk radio, but it can be preset to a different tone. 3-77