2003 GMC Yukon Owner's Manual - Page 256

AUTO EQ (Automatic Equalization): Press this button to choose bass and treble equalization settings designed for country/western, jazz, talk, pop, rock and classical stations. Selecting CUSTOM or changing bass or treble, returns the EQ to the manual bass and treble settings. The radio will save separate AUTO EQ settings for each preset and source. If you radio is equipped with the Bose audio system, your equalization settings are either CUSTOM or TALK. 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. The radio will produce one beep and CENTERED will appear on the display. Finding a PTY Station (RDS and XM™) To select and find a desired PTY perform the following: 1. Press the P-TYPE button. P-TYPE and the last selected PTY will be displayed on the screen. 2. Select a category by turning the P-TYPE knob. 3. Once the desired category is displayed, press either SEEK arrow to select the category and take you to the category's first station. 4. If you want to go to another station within that category and the category is displayed, press either SEEK arrow once. If the category is not displayed, press either SEEK arrow twice to display the category and then to go to another station. 5. If PTY times out and is no longer on the display, go back to Step 1. 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 left or the right 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 beep once and will adjust the display level to the middle position. 3-102