Audio Systems: DVD audio, chevy suburban, radio source

Question
We just purchased a 2005 Chevy Suburban with an installed DVD Player. It plays the video perfectly, but there is no audio! We've pushed every conceivable button in every possible order and can't figure it out. Any ideas?

Answer
Did you have the dash unit turned to dvd audio and the volume turned up?

I don't recall the exact procedure but there is a switching system whereby the rear people can watch the video and get its sound while the front (driver and passenger) can listen to the radio.  It should be covered in the owners manual.

I don't have the manual for the 05, but here is the manual for an 04 and maybe it is the same kind of function:

http://www.analogstereo.com/pdf/om/2003suburban.pdf

And, on page 3-98 it says"

"Listening to a DVD
Your vehicle may have an overhead Rear Seat
Entertainment (RSE) System. If your vehicle has this
system and a DVD is playing, the DVD symbol will
appear on the radio display indicating that the DVD is
available and can be listened through your vehicles
speakers. To listen to the DVD, press the TAPE DISC
button until RSE appears on the radio display. The
current radio source will stop and the DVD sound will
come through the speakers. To stop listening to
the DVD, press the TAPE DISC button, if a cassette
tape or a CD is loaded, or press the BAND button
to select a different source.
When the RSE system is turned off, the DVD symbol
will go off of the radio display and the radio will display
RSE OFF. The radio will return to the last radio
source that you were listening to."

Hope this helps.
Cleggsan