Anyone know what this small clear button is above the auxiliary power switch? The boat is a 97 Tyee grand sport 1850. It is wired to one of the batteries and has another wire hanging loose.
Seems that is a push button circuit breaker with a protected boot. I don’t believe it is protecting anything because it is only wired to the battery with the other lead not hooked to anything. Everything seems to be working so at least some of the mystery is solved.
At one time that button was connected to a fish horn. If fishing was slow you would push it and the fish would come swimming to you. The previous owner must have kept the horn when he sold you the boat.
My guess would be a reset of some kind. Let us know what Lund says.