What's this?

[cymrusteve]

I've got my Westy folding bed out at the moment and am cleaning up some of the paint/rust areas before reinstalling the bed. Not sure what the "hole" is in the pic below.... Any ideas? Should it be there?

 

[67westy]

It looks to be in the same place that I made a hole for my hookup cable to go through from the engine bay to the consumer unit under the rock and roll bed