2005 Chevrolet Cobalt Owner's Manual - Page 150

Playing the Radio O (Power): Press this knob to turn the system on and off. u (Volume): Turn this knob to increase or to decrease the volume. DISP (Display): When the ignition is off, press this knob to display the time. For RDS, press the DISP knob to change what appears on the display. The display options are station name, RDS station frequency, PTY, and the name of the program (if available). For XM™ (if equipped), press the DISP knob, while in XM™ mode, to retrieve four different categories of information related to the current song or channel: Artist, Song Title, Category or PTY, Channel Number/Channel Name. To change the default on the display, press the DISP knob until you see the display you want, then hold the knob for two seconds. The radio will produce a beep and the selected display will now be the default. AUTO u (Automatic Volume): With automatic volume, the audio system adjusts automatically to make up for road and wind noise as you drive. Set the volume at the desired level. Press this button to select LOW, MEDIUM, or HIGH. AUTO VOL LOW, AUTO VOL MEDIUM, or AUTO VOL HIGH will appear on the display. Each higher setting will allow for more volume compensation at faster vehicle speeds. Then as you drive, automatic volume increases the volume, as necessary, to overcome noise at any speed. The volume level should always sound the same to you as you drive. AUTO VOL NONE will appear on the display if the radio cannot determine the vehicle speed or if the engine is not running. To turn automatic volume off, press this button until AUTO VOL OFF appears on the display. Finding a Station BAND: Press this button to switch between FM1, FM2, AM, or XM1 or XM2 (if equipped). The display will show the selection. ADJ (Adjust): Turn this knob to select radio stations. 3-52