Call Vinnie at Plinius and tell him exactly what you want to do.
He is a good guy and will help.
Actually, a diagram is the safest way to proceed with any kind of discussion regarding wiring.
Leaving the Plinius on, per se, is not a problem, since it is designed to be left on. But the exact parameters of your question are best referred to the US Distributor, Vinnie Galbo, in the form of that specific drawing.
If the distribution has changed contact Plinius directly with the diagram. (Their web is on the net obviously) The designers are good men and extremely helpful. They will not take you in the wrong directon.
Larry R. Staples