Okay, I have a question for all you car audio/video/Nav experts. I know there has been past threads regarding the Eclipse AVN system (eithr the AVN 2454, AVN 5435 or AVN 5495), and kudos to the guy who installed one (it looks great). But here is my question, I currently have the Shaker 1000 in my '05 GT Vert, an am interested in one of the Eclipse AVN systems, so will any of the Eclipse AVN systems work with the Shaker 1000 system (speakers, bass, amps etc) or do I need to replace the entire system? I am really interested in the DVD and NAV capacities (it appears that the Dodge Charger offers this as an option, but Ford does not), but I do not want to give up CD or MP3 capabilities. Also, what would be needed to adapt XM radio to any of these systems?