2004 GMC Envoy Owner's Manual - Page 215

Adjusting the Speakers (Balance/Fade) AUDIO: To adjust the balance between the right and the left speakers, push the AUDIO knob until BAL appears on the display. Turn the knob to move the sound toward the right or the left speakers. To adjust the fade between the front and rear speakers, push and hold the AUDIO knob until FAD appears on the display. Turn the knob to move the sound toward the front or the rear speakers. To adjust the balance and the fade to the middle position, select balance or fade and push and hold the AUDIO knob. The radio will produce one beep and adjust the display level to the middle position. To adjust all tone and speaker controls to the middle position, push and hold the AUDIO knob when no tone or speaker controls are displayed. CENTERED will appear on the display and you will hear a beep. Finding a Program Type (PTY) Station (RDS and XM™) To select and find a desired PTY perform the following: 1. Press the P-TYPE button to activate program type select mode. P-TYPE and the last selected PTY will appear on the display. 2. Turn the P-TYPE knob to select a PTY. 3. Once the desired PTY is displayed, press either SEEK arrow to select the PTY and take you to the PTY's first station. 4. To go to another station within that PTY and the PTY is displayed, press either SEEK arrow once. If the PTY is not displayed, press either SEEK arrow twice to display the PTY and then to go to another station. 5. Press the P-TYPE button to exit program type select mode. If PTY times out and is no longer on the display, go back to Step 1. If both P-TYPE and TRAF are on, the radio will search for stations with the selected PTY and traffic announcements. 3-95