Umm...lemme think.
Negative to house battery. Our coach & house batteries are together, both hooked to a battery isolator in the front of the engine compartment (from the factory), both grounded to the frame. So the alternator charges both going down the road but one will not pull down the other. And, if needed, we can hook them together to start the rig in case the coach battery dies or goes too low.
The 12v constant power source (for power & presets) is hooked to something behind the dash, but I'll probably have to ask him later (he's on a roof in the rain right now).
I will take pics later, I swear ;)
