Will do - no time for the unit until next week, and will solder the wire on then.
Zeb, appreciate the suggestion, and may still do it at some point. At least it's functional for now for me to give it a good workout.
Again, best I can describe (sorry have the cover back on and unit is away) is with the unit upside down and the front panel facing me, there are a row of wires attached to the right side of the board. In the bottom right corner, the bottom pin has a red wire, second white, and third red. These are heavier gauge wires coming over from the big black doohickies to the right. (capacitors?). The bottom red is a lone wire, while the white and red for the 2nd and 3rd posts are braided together.