Well, I'm looking at this one but I'm not sure if it's suitable - can you tell from those details if it'll do the trick?
Also, did you get your relay from Maplin too?
My mistake i got it from CPC
Heres the link: Timer
Thats the one i used for the mirrors, i "borrowed" the relay from work unfortunatly.
And i used this one Linky attached to the circuit to run the sunroof but i never quite got that working properly.
Hope this helps
Stav