yesterday I finished connecting things up to a point that I spend this morning looking for loose wires etc. Finally felt confident enough that I flipped teh switch and darned if stuff didn't light up!
Two squawks though; The audio panel circuit breaker immediate tripped and I got an error message for a data path fail on Arinc channel 2, which is the Gad talking to the GTN regarding the Nav 2 VOR.
Went and did some stuff with Kriya, then later this afternoon I circled back to this and discovered a bent power pin on the 44 pin high density D-sub connector into the audio panel. It was misaligned and when I seated the unit in the rack, it bent the pin over to a point that it shorted against the connector :(
Time to step back and take a minute here, but I'm considering it a win.