Who knows about turn signal wiring?

One thing you can do is make a pin out chart.

Basically you choose one wire and check for continuity to all other wires in all possible switch positions.

Eventually you have a chart that will tell you what each word does.
That is actually how I figured out what wires to use for the signal outputs, I do not remember if I figured out the four unused 16 ga wires, that was all done about two and a half years ago, I'm not sure if I kept that chart I may have to create another?