Right on about individual dealer setups, and this is the downside of storing my boat at the lake, can't go out to the garage and double-check how things are wired. I'll give my dealer a call in the morning and be sure I'm clear on how it's setup, then I'll let you know and see what you think. The system you have sounds sweet but I didn't hear about it in time before I had the factory 2nd battery and switch installed. So for this season at least, I've gotta stick with the switch for now and figure out the best way to utilize it/wire it.