Okay, now that I've had a look under the air filter, I'll reply to my own post
What I was looking at was the connector above the radiator, it appears that the pair of wires that had rubbed through are for the "Accessory Connector" which I think on earlier models was used to connect the heated grips. On my 2016 DL650 xt the heated grip connector is inside the right hand side of the fairing, I use it for powering a USB charger.
I just taped over each wire individually then taped them over together, covered over the connector with tape and taped the lot up against the main cable farther up. I also put in a piece of rubber to stop the clutch cable chafing the main loom.
Hope this is of help to anyone who finds this issue.