I think it would be more trouble than it's worth. You'll definitely have to replace the H/U with either an '06 model or with an aftermarket unit that supports the controls. Then you'll have to get ahold of a steering wheel out of an '06, which I'm sure is no easy task. After that, you'll probably be in need of some additional wiring. I say forget it. If you absolutely have to have it, trade in the '05 for an '06. That's probably the best option.