I have a 2003 LS V8 with the navigation and 6 CD changer (behind the NAV screen). I currently have my XM radio hooked up to the back of the radio using a FM modulator and I'm looking to do away with that and hook up my IPOD directly. It seems like every site I go to looking for a system does not include the 2003 in the application or have footnotes not including the in-dash cd changer. Does anyone have the IPOD hooked up directly, and how?