<span class="ev_code_RED">Just to clarify...</span> on the original posters 2004 Southwind 32VS, the AUX
refers to the two 6-volt house batteries under the entry door steps and the MAIN
is the single 12v chassis battery found in the engine compartment. The two labeled disconnects over the front door will disconnect either the Main or Aux.
Very easy to mix up Aux with Main and vice versa when you are having a conversation about them...