A note on the Blue Sea weatherdeck panel.
Switch two backlight jumper terminates on the board very close to the ground terminal - it was shorting the circuit and blowiing the fuse. Im not using the backlight so I just disconnected it, contacted Blue Sea via email- no response yet but i will update when I hear back.
In this photo you can see where the jumper is soldered to the board - not sure if its a soldering error or insulation.
View of the other side, the backlight jumpers attach to the output side of the switches, #2 is disconnected for now.