I dont't know if I have the same set up. There is one panel on the engine box. It contains 2 battery switches, one for the engine battery and the other for the house batteries. It also contains a Heart remote monitor panel which shows volts,amps,shore power ect, and and inverter on off switch. The panel over the nav. station contains an on/off for the 110v,on/off for 12v.. I turned everything off, and disconnected the shore power, but I did not turn off 12 volt on/off on the nav station panel.. The 2nd 8ds arre instlled in location for the generator.