2009 GMC Sierra 1500 Crew Cab Owner's Manual - Page 283

CD/AUX (CD/Auxiliary): Press to play a CD when listening to the radio. The CD icon and a message showing the disc and/or track number displays when a CD is in the player. Press again and the system automatically searches for an auxiliary input device, such as a portable audio player. If a portable audio player is not connected, "No Input Device Found" displays. DVD/CD AUX (Auxiliary): Press this button to cycle through DVD, CD, or Auxiliary when listening to the radio. The DVD/CD text label and a message showing the track or chapter number displays when a disc is in either slot. Press this button again and the system automatically searches for an auxiliary input device, such as a portable audio player. If a portable audio player is not connected, "No Aux Input Device" displays. If a disc is in both the DVD slot and the CD slot the DVD/CD AUX button cycles between the two sources and not indicate "No Aux Input Device". If a front auxiliary device is connected, the DVD/CD AUX button cycles through all available options, such as: DVD slot, CD slot, Front Auxiliary, and Rear Auxiliary (if available). See "Using the Auxiliary Input Jack(s)" later in this section, or "Audio/Video (A/V) Jacks" under, Rear Seat Entertainment (RSE) System on page 3-129 for more information. If a disc is inserted into top DVD slot, the rear seat operator can turn on the video screen and use the remote control to navigate the CD (tracks only) through the remote control. Radios with CD and DVD Audio Output Only one audio source can be heard through the speakers at one time. An audio source is defined as DVD slot, CD slot, XM, FM/AM, Front Auxiliary Jack, or Rear Auxiliary Jack. Press the O button to turn the radio on. The radio can be heard through all of the vehicle speakers. Front seat passengers can listen to the radio (AM, FM, or XM) by pressing the BAND button or the DVD/CD AUX button to select CD slot, DVD slot, front or rear auxiliary input (if available). If a playback device is plugged into the radio's front auxiliary input jack or the rear auxiliary jack, the front seat passengers are able to listen to playback from this source through the vehicle speakers. See "Using the Auxiliary Input Jack(s)" later in this section, or "Audio/Video (A/V) Jacks" under, Rear Seat Entertainment (RSE) System on page 3-129 for more information. In some vehicles, depending on audio options, the rear speakers can be muted when the RSA power is turned on. See Rear Seat Audio (RSA) on page 3-138 for more information. 3-99