I have a 2004 HU that I want to put into my 00, but i can't find the wiring code for the 2004 to match up the wires to my 200. Does anyone have the 2004 wiring diagram? Will I lose my steering controls? If all else fails, I would be willing to trade for a 2000 in-dash 6 disc HU for mine.

No, you won't lose steering controls, and yes I do have the wiring diagrams, I am at work right now though and don't have access to them. Shoot me a PM and I'll send them to you if someone else doesn't by the time I get home.