I'd likely be over on the hull truth getting eaten alive.Christian
I was checking out the photos on your blog and the thing that got to me was the use of the terminal strips with all the short jumpers. If any one of those jumpers has a bad crimp, it will kill everything downstream from that point. I'm wondering if the devices are all daisy chained together and one bad upstream ground is killing them.
On the picture with all the grounds you have 2 terminal strips and one ground block. What I would do is get another ground block and ditch the two terminal strips. One large ground goes to the big lug and then all the branch grounds go to the smaller screws. Or in the short term, you can put two lugs under a single screw and just use the block. Terminal strips are made to purposely isolate adjacent circuits.
edit: I count 6 or 7 individual grounds - they could easily fit on the ground bus block. Ditch the terminal strips and all those jumpers. I would also do the same for +12v - lose the terminal strip and connect everything to the +12v buss bar. It also looks like you have both +12v and grounds on the lower right terminal strip - mixing them up could cause some headaches. I assume that there are crcuit breakers daisy chained into your console switch panel. Double check the downstream of the breakers to make sure you have +12v and nothing was tripped.
I'm going to through bolt the fill, then attach the ground wire to the backside of one of the bolts. Cool?