Stevie,
if you still need them I found these in the garage:
http://homepage.ntlworld.com/chedzoy...erstepdown.JPG
( I couldn't find the springy things)
Its a stepdown from about 6.5mm to 4mm and a t-piece in 6.5mm with a stepdown on the other end. This is all out of a sierra.
While searching for this I found what was left of the old sierra loom, including a connector that contained the same pins I was after the other day for my ignition that means I don't have to dodge something
I was very happy about that!
PM your address if you want these.
cheers
Graham