Same question and thought I'd revive this thread. I can pull the instrument cluster from a wrecked 04 at a junkyard for cheap and was wondering if anyone new the answers to the original post.
Mainly I want to know if I can just plug the new ones in and keep my mileage. I swear I read/heard of someone doing this?
I've searched thoroughly...it seems the odometer reading is stored on a circuit board behind these gauges. Is that board part of this cluster? or somewhere else?