Instead of bodge-jobbing a new cable to the mausberry, decided to solder some GPIO pins into the holes, its now much neater and there's not cables flexing the joints. Its only the second time I've soldered and I must say, I've done a lovely job!
I've ordered a switch, thanks for the pointers Pete, I'm in the uk, I've ordered a simple switch that is eventually going to be hidden into the Walnut frame for the unit. I plan to use an empty bullet casing for the visible part of the switch, I'm into making my own furniture and I try to hide a casing in each thing I make.
I'll let you know how i get on when the new switch arrives, I think there shouldn't be a problem... famous last words!