Run the auger from where you can see the grain, not from the cab.
Moving grain with a PTO auger means a lot of walking. You start the PTO in the cab, walk to the hopper or the bin, walk back to change engine speed, and walk back again to shut down. PowerSync puts those controls in a handheld remote.
PowerSync plugs in at the throttle sensor and PTO switch, so fit depends on which parts your John Deere was built with. See every model by series.