First Google hit ....
http://cgi.ebay.co.uk/FORD-ISO-ADAP...emZ290100203585QQcategoryZ14932QQcmdZViewItem
Cheers,
Nigel
Just go to halfords, it'll be about £12.99 but it means you dont have to wait for delivery for the sake of about a fiver, plus you know its a good quality cable rather than some home bodge job which an ebay one could be.