Okay, so I am going with a double throw switch as John suggested, and a filter capacitor. AS far as the filter capacitor goes where would I obtain this and what size would I look for?
Also while I am picking your brains, I am really going to start to watch my battery voltage, what #'s am I looking for? A full charge is 12.63? then get it back on a charger at 12.18? are these right? if they are, when I get it down to 12.18 do I try the BM and if it keeps up with usage at the time I just keep it on? If I try the BM and it starts to dip below 12.18 do I kick in the Univolt until I reach 12.63 then go back to BM????
Have I told you lately how awesome you guys are to be helping out an amateur like me