We continued to work on the panel yesterday.
We got the pitot and static system hooked up.
We finished the pitch and yaw trim position wiring.
We found a couple small issues including no ground wire for the USB port (fixed)
A talk with Stein corrected a misunderstanding that I had. I thought the GDL-51A provided a GPS signal to the PFD and MFD, in fact it is the other way around the GDL-51A gets a GPS position from the PFD via the RS-232 connection. This will require one more coax cable from the PFD to the antenna mounted just aft of the baggage compartment.