I have a 2019 520c that has intermittent voltage loss to PC board (under front deck)at front of boat. My question is where is this fused at? I’ve looked at schematic on rear deck lid and I don’t see dedicated fuse to that pc board. I have checked all fuses I can find in rear of boat and all ohm out good. Just wondering if anyone has had a issue like this and what was the fix? Tia.