bulkhead connector

I thought of doing that, but isn't that the fuse able link wire? It looks like it was replaced at one time with just the ten gauge.

Part of it is I think but not all of it, and certainly not the part that goes through connector.
I used a self resetting circuit breaker with 10ga in place of the fusible link, because lord knows we don't need something that burns by design under the hood. :D