I forgot one thing. How to get shore power and water in the compartment now that the factory opening is full with the new fitting.
This was a easy fix. I purchased a 4.5in bulkhead fitting from my local RV parts center, got the hole saw out, drilled the hole, used butal (SP) tape and installed it.
Keeping the critters out is easy. I don't use steel wool, I use clothes drier sheets. I don't care if they are mice, rats, chipmunks, squirrels they wont go near it.
Here is a few pictures of the finished product.
I tried but Photobucket is doing maintenance so I will upload pictures tomorrow night.