bdoyle wrote:
Just wondering if some one had come across something that was made for that box.
I'd explore the weatherstripping section at your local big box store. You may be able to find something which can be glued along the inside edge of the top, so that it seals when the lid is pulled tight by the hold down straps. That would eliminate the need for duct tape. It also shouldn't be hard to find some closed-cell foam which can go around the cables and fill that gap. Maybe cut a chunk off one of those floating pool "noodles."