1. With the help of my friend Jim and his VOR/ILS test unit, we checked the VOR/LOC/GS antenna and coax, and managed to successfully display ILS data and VOR radial data on the PFD.
2. While I'm still waiting for my TNC connectors to arrive from Stein Air, I fabricated a work-around way to connect GPS antennas to the back of the GTN 650 and PFD. After one aborted attempt due to a shorted connection at one end of the coax, I got both receivers to work. The GTN was perfectly happy with my cobbled-together connections, and it got down to a 0.8 HDOP with 12 satellites, even inside my hangar! Not bad. The AHRS was also happy with the signal.
3. I raised the tail of the airplane to the level flight attitude, and performed the AHRS calibration. It was successful, and now I have pitch/roll info on the PFD, a horizon, flight director bars, and probably a bunch of other stuff, too.
4. I finally got every G3X unit online and a green checkmark on everything. There are still a couple of RS-232 ports that don't seem to be connected, but I'll figure that out later, after I do the magnetometer calibrations, and to do that I have to wait until the elevator and rudder are attached.. So I'll move on to something else for now, and assume that the compass configurations will go well, when I get to them.
5. I plugged in my headset and checked the audio outputs from the G3X system -- the audio alerts for approach minimums, the altitude alerter chime, etc. They all sounded great!
6. The final, crowing achievement was that I got the autopilot to turn on, and checked all the different modes displayed on the GMC autopilot controller and the PFD. It was a rush going to V/S mode, moving the thumbwheel, and watching the elevator pushrod move back and forth. Lastly, I pushed the TOGA button and watched the pitch servo move and the FP bars move up to 5 degrees nose-high on both the PFD and the G5. Yahoo!