Sorry. The auger is hydraulically driven from PTO ports on the FEL arms, with a solenoid in the tractor that turns it on and off. Power-Tracs have a quick attach plate in front where all the implements are mounted, and the PTO ports are built into the arms, like a Bobcat.
Long story short, the PTO control solenoid on my tractor is buried (need to drain the hydraulic tank, remove the fuel tank, and some ancillary hardware to get to it, and there isn't much space). I have a four way three position solenoid leftover from a different project, but it won't fit in the available space. So, plan B was to put the reversing solenoid on the auger as it is really the only PTO powered attachment that I own that needs reverse.
All the best,
Peter