Not sure if you have Halfords over your way mate? But they do them now too they were a lot cheaper than ebay as well Just need the autoleads part number (probably find it on ebay?} if they haven't got in stock and they will order it for you?
I finally got an AMP Bypass lead Sent over from London for €36 from eBay, a big difference from €55
I didnt get to fitting my head unit until yesterday & the whole job must have taken me about 4 hours but it was well worth it....I took out my External Amp altogether to give more Space and ran the wires along the bottom of the stock wiring to the head unit opening and Wired the Bypass lead to the Head unit Loom.
I am well chuffed with the Final product and well proud of my Tidy Wiring Job
Will upload pics of my Pioneer AVH-P4300DVD Finished product on a Different Thread,
Thanks for the help guys
"Drifting is the Art of being in Control while Out of Control"