OK, folks who wrote and asked me for a diagram of how I wired up my
second battery using a relay, don't follow those instructions just yet
: )

There's still a small problem. Where's the best place to wire into the
camper stuff to run it off the aux battery? I was using one of the red
wires from the alternator (origninally to the main battery) but when
the aux battery runs low, the car won't start.

But is this the best place to pick up the camping stuff? Is there
another wire on the car I should be looking at?

??

Jim