My 2003 340 DA has a 12v disconnect problem. When I use the carlingswitch in the galley to shut down the starboard power, I must re-energize the starboard disconnect carlingswitch in the engine bay to get power back on the starboard side. The port side does not have this issue. As long as I don't use the switches in the galley, everything works as it should. I'm the 4th owner, any ideas ?