The PTT (push to talk) wiring from the harness were too short, so I spliced the wires I already ran from the control sticks (pilot and passenger) to the wires from the harness.
Then I began making the connections to the ZTron switch/breakers (photo 2).
I'm perplexed by my "smoke" system wiring. I have too many wires! Gotta figure that one out.
PTT switch wires from harness, right, to control stick, left.