What's this wire
 

Basically as the title says what is this wire in my grubby mitt where does it go or is it spare?

http://img.photobucket.com/albums/v4.../IMAGE_003.jpg

Any help would be appreciated.

there are a few unused wires around that area that are for Air con, it maybe one of them

Have just changed the head I have one grey multi connector spare that I knew would be and this wire which I'm not sure about looked every where tried it on a few bit it looks like it might connect to but no luck, just need to make sure it is spare and not something important.

Struggling to see which one your holding to be honest, but it might the temperature gauge wire

If it is where does it plug into as I have looked but not found anything that looks like it would plug in to.

Its to the right of the yellow plug as pictured

Cheers I'll take a look next time I'm with the car.

it looks a bit to big for the temp gauge, unless its the photo, temp gauge is the a small spade connector on mine, well it was on the blue mk1, but that din't have a cover over it, i'll look at mine in the morning.

I have been looking for a spade connector to plug into it as it is of that size.

that will be the one that 30psi mentioned then, its on the left side of the thermostat housing, tooked away.