[Fiddlehead]

Hi Russ,

My boat is a different model (2003 3500 Open), but I'm happy to help if I can.    

Any way you can post a pic of the switches?

Thanks!

Mike
Fiddlehead

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Follow-up ...

Here's an AC panel from a 2900 Open (a 2002, but should be pretty close to yours if not exactly the same).  If you have any unlabeled switches that are not on this panel, they may be for accessories that were added to your boat by a prior owner.  (For example, I have an extra switch on my panel for a satellite dish & receiver.) 



Hope this helps!

Mike