Here we go. We have a 2005 Bounder, gas, workhorse chassis. When not connected to shore power we do not have 12vdc in the coach. Just replaced the coach batteries, originals were two 12v deep cycle ba...
I think the best solution since you are obviously electrically ignorant is to pay a RV technician to get things working for you then give you some basic education. Would be far cheaper to pay him for 4 hours than thousands if you screw up something.