grady white 330 express

Hi guys, I’ve been trying to figure out what the switch in the bathroom does on my 04’ 330 express. It’s next to the outlet behind the toilet on the wall. See attached picture. Anyone know what this switch does? Thanks!

So, has anyone gone down this road? I have a new to me 2013 330 that I'd like to retro the transom fish box into a chilled unit. I've seen a few discussions here, but no pictures or any real detail other than I'm doing it or I've done it. I have a few questions if you can help me: 1) what...

We have a Grady White 330 Express 2007 (owned for 4 years). We've had regular issues with the bow thruster. We fully replaced everything about 18 months ago, but still having issues. Issues we've had: 1. The shear pin breaking - replaced 2. Prop fell off 3. Prop stripped out With the shear...