Carol Lani,
Does your boat even have shore power capabilities? Do you have a 120 VAC circuit panel in your boat? The most common mounting location of the shore power inlet receptacle is located on the aft side of the aft cabin bulkhead, all the way forward in the storage tray, starboard side.
Best regards,
Steve Baum
PS, Feel free to call me regarding this issue at 757-477-1453.