Hi all, Can someone help me please. I have a Sea Ray 360 Sundancer (395 European spec) year 2002. On the main control station, at the helm, there is a red 'Engine Sync Switch' with an off, auto and on position. It has battery symbols at the top and bottom on the switch. It is located near to the engine start switches. I have looked in the manual to find out what this switch does but there is nothing I could find. Can anyone help me with what this switch does please. It's probably a stupid question but I can't seem to find the answer in the owners manual.