The piece in the trunk is a welder's trick to "fill weld" the hole in the lid. The quicker you fill the hole the less heat produced, less heat equals less warping.
I can understand that as a technique but I don't know what hole would be welded in this case.
There's a hole in the inner structure so it would be safe to say there was a hole drilled in the outer side as well.
I love the smell of Deer guts in the morning, it smells like... VICTORY!
