This is a stupid question ......but I have never used shore power on my Cat30. I am going away for a week for Christmas and will probably have a berth on one night with shore power. Would be handy for the admiral's hairdryer..... Do I just stick in the plug? Is there anything that needs to be switched on or off? I assume the manual mentions something, but it is on the boat, and I am not sure it does mention anything about shore power. I know the PO has used it, so all that should be there is there...Sorry for asking the obvious, but I'ld rather not fry the whole system!