2006 Marlin - Dash Accessory Switch (?)

The Marlin. owner's manual I looked at had a fresh water breaker on the DC panel. On I my slander there is a switch on the helm panel. I wonder if GW had it wired to a switch as well if the customer wanted it that way.
 
Do you have Fresh Water? Is there a switch for it? Generic Grady chart uses orange/blue for Water Pressure Pump (FW). Orange with stripe usually means a pump motor or wiper motor.

That looks like original wiring. they didn't deviate from their plan. They make the harnesses all the same. Find this chart in your manual.

Maybe they lost the FW switch cover and replaced with ACC?

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That's very helpful, thanks. Let me poke around and see.