You can't just plug and play the AL components that come on the combine, at least not a few months ago.  Maybe you can now.  Part of the reason for switching to Deere's 2630 was that we liked the AL yield and moisture components and since Deere was using them figured we would just make the switch.  Also running auto-steer with Deere so it was nice to have eveything in one monitor on the armrest.  Guess I learned a lesson.