No, it seems to me that you completed a deal with someone - you mentioned that you got a good trade in on your old prop. I wondered what shop you worked with.
Your best bet is to call around some. Pick up a "Trade-a-plane" and see who's selling the Hartzell Top Prop STC kits. Most of them will be propeller shops, and, depending upon the condition of your old prop, they will offer you a trade in on it. Most of the shops that are actively selling the...
When I was there, the guys I worked with called it "pee-lah-tous."
As an interesting sidenote, the Pilatus factory was Goldfinger's factory (where he melted down the car) in the old James Bond movie.
Ron:
I'm pretty new to this stuff, so you might want to PM @weirdjim, but one of these might work:
http://makearadio.com/misc-stuff/t-725.php
Looks to me like you could connect the output from your panel to the two pink wires and then connect your headphones to the red & black ones.
These...
When I lived in Cleveland there was an Urban Legend that there was a guy in town named Nosmo King. Nerver could verify it. He wasn't in the phone book. Still thought it was funny.
For those of you that are AOPA members, there's an "Engine & Propeller" online course that you can view that explains the relationship between blade pitch, MP, RPM, etc.