Audio Systems: 2005 tahoe car audio, auxiliary input adapter, chevrolet 2002

Question
I have a 2005 Tahoe with a outdated nav. system (big screen) and a touch screen radio, no aux button to play my IPOD, I would like for my son to replace the system. But with what? and will I lose the navi. system and oh my dvd player also plays thru there?? will I lose that as well???

Answer
no need to replace the radio if you do you loser the nav system, rear dvd, and steering controls

just add a auxiliary audio input interface for Chevrolet

http://www.oemautosound.com/pc-296-83-piegm12-aux-chevrolet-2002-2007-auxiliary-...