Posted 4/5/2020 22:39 (#8168484 - in reply to #8167121) Subject: RE: New to us Challenger 645C with Reichhardt PSR ISO
NW KS
Green fit interfaces the John deere displays with a different model of tractor.
PSR iso is a different setup. PSR ISO uses the virtual terminal on the john deere display or the tractor display. It is basically a separate steering system that just happens to use the display.