Originally Posted by THE RADMAN
funny you should say that as ive been meaning to do it for ages,and have even got all the bits ready,is it best to tin both ends of the wires first or just twist the wires together and solder the lot?
cut back a couple of inches from the plugs either way, or untill you get to fresh clean copper, and join using fresh wire - that way you will not be stretching the existing wires at all.
then to seal, use heat shrink on each wire to seal it niceley, and then loom tape all together so it looks factory
If you are bothered about remembering which wire goes where, do it one at a time and using joining wires to suit