I completed linking up all the wiring to the panel today (apart from the transponder which I don't have yet), and off course afterwards I had to see if it all works as expected. I hooked up the battery, turned on the master switch followed by the instrument switch and avionics switch. It works! I then tested the Aeroflash beacon as well. Yes! It's flashing! I'm stoked! Finally I got my lovely wife to go to the other side of the house with a handheld radio, we set the frequency on the handheld and on my FL760 to 123.45. I plugged in my headset, pressed the PTT and asked if she could hear me, The response I got back was loud and clear. Yes! It's alive! It all works!