It's the Wild-Wild West, when it comes to standarization of RV electrical. And only another owner of your make can tell you off hand exactly where your battery connection switch contacts are located.
As a tip, the self monitoring battery paralleling switches like the Sure Power are the way to go. If you have a 130 amp alternator, choose the 200-amp model paralleling switch. The standard solenoids that I accumulated that didn't go to the scrap yard, were used to throw at barking dogs next door to the shop.
If you want to parallel batteries for engine starting, use a bypass circuit around the Sure Power consisting of a starter solenoid, like a Ford fender mounted unit.
