Audio Systems: 2006 SIerra CD Player, auxiliary input adapter, chevrolet 2002

Question
The CD player in my 2006 Sierra SLT has quit playing.  It still loads and ejects discs, but does not play.  Is there a way to repair this or does the unit need to be replaced?  Is there a replacement unit that includes an aux input, and a integrated GPS that still functions with the steering wheel controls and the rear seat controls?

Answer
The radio cd player can be repair , it only needs a new laser pickup module
also your radio comes with the CD/AUX button you can add audio input intrface to any gm vehicle from 2000 to 2009 you need this interface

http://www.oemautosound.com/pc-296-83-pie-gm12-aux-chevrolet-2002-2007-auxiliary...