I thought I'd get a pair of these as well. So using the above reference number and the inclusion of the yellow insert I found an ebay auction selling the cable at a reasonable price.
The trouble with ebaying when tired you get wirds moxed up. I thought I had ordered two of these (click pic for abay link):
but it turns out I've had delivered two pair of these:
The seller has got it wrong and sent me the wrong cables, not me. Is that right? If that's so, I'll email him asap and get them to send out the right cables. Bah.