This weekend was electrical time. We dove in to understand how the boat was wired, and made some changes to make sure off means off.
A Blue Sea fuse panel went into the rats nest and now powers the GPS, Sonar, and cabin lighting. When I finish, it will also power the navigation lights, blower, horn, and any other house load. The fuse panel is switched from a new DPDT switch and ACR between the start and house batteries. The bilge will bypass the switch so I can turn off the rest of the power when the boat's in the water.
We also pulled out about 30 feet of wire.
Most of it was good wire. Some of it was two pieces of wire spun together under electrical tape and some speaker wire providing 12 V power. I'm glad we did this project!
In the mix of this new wiring architecture, we took some of the leftover wiring and got the helm light working again! IT HAS BATTLE MODE!
...aka HAL 9000 mode.