How far did you rip the wire? I believe that there's still a notch out of arm tube. If that's the case, you can dissassemble the DIN, tie up just one lead of sufficient length and pull out broken one with replacement one without rewiring the whole arm.
If you want to upgrade wires, you can follow the same actions but for the whole wire set.
Shouldn't even take long
If you want to upgrade wires, you can follow the same actions but for the whole wire set.
Shouldn't even take long