No I won't be able to put the cable through, too many bends and it's quite a run, plus the cables not too tough.
I mean there is every possibility that something has happened mate but I very much doubt it as I was extremely careful when nailing it back down. It's nailed with cut clasp nails (the original pine boards). As I said, it worked for a good few months then we started having problems. Hopefully when he gets in and does some tests, he will come up with a way ahead. Tbh, if he needs to run a new cable, he needs to run a new cable, relatively pain free experience both cost and work wise. I will update