Well spotted Craig.

I'd be inclined to put a Butt Connector in there and tie wrap the cable so it doesn't chafe again.

https://www.maplin.co.uk/p/maplin-insulated-crimp-terminal-butt-splice-blue-jh80b

There is a tool for these but if you are careful you can crimp them with pliers if you are unfamiliar with them do a trial first maybe. I would think the Blue one is probably the size to chose from the pack.
If you have a local agricultural supplies shop most stock these or any auto supplies store.

Last edited by +8Rich; 17/10/17 11:10 AM. Reason: X Red to Blue
2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev