I've got a '04 GTP with factory AM/FM CD Deck. I have the opportunity to purchase a Factory Nav System from an '08 GXP that was totalled. Does any one know if the wire harnes is the same between these two cars? All looks to be the same externally and I certaintly want to keep the steering wheel controlls. I've heard that I'll need to take it to the dealer to get it unlocked if I install it in my car, but I'm more concerned about it fitting without wiring modificatoins. Has anyone ever done this??
Thanks!
Ray