You could try to just replace the connector. That is what I did on mine. The connector only costs a few $ maybe $5. I had to do this on my positive cable. You can get a replacement connector at any parts store. I had to do mine on the road and found one at a Sears Automotive.
The negative cable is routed to the starter. You only need to remove a bolt there and re route the cable through the engine back to the battery. there ya go.