Took bout 2hours to do, see pic below...
http://erc.qmuc.ac.uk/cliosport/gallery/full/1105729125__untitled.jpg
This is the relay u get with it....
a: ignition live
b: Starter positive
c: not used
d: constant earth (neg)
e: Ignition live
The hardest bit was getting to the bloody wires under the dash. U dont have to remove any of the steering colomn, jus pop out the little bit where u can change the light angle (small grey square) and u can see all the wires there.
Ull see a bunch of wires going into another block. U need to find the orange wire coming into the box, and cut it when it comes out....this wire will now be white. Cut this and then connect the other end to your wires to your new relay.
Strip your ignition wire from the same place....it is the wire that starts off being yellow with a green stripe and goes into plain yellow. Make sure u get the right one, as there are two. Create a T join by jus strippin back the old wire and joining and soldering the new one on.
Run both these wires to where u want your button and find an earth, this doesnt have to be great, as is jus for the LED, not the starter motor...
Make sure the wireu use for the starter motor is as thick as the wire u are replacing.....its pretty thick.
Then jus drill hole, pop in and connect up.
U have to open the car as usual with the blip etc, take steering lock off with key, but as soon as u click it into ignition (which is what u need to do to get the lock off neway) the button lights up and u jus press and VA VA VOOOOOM!!
Its wicked feelin starting yr car from a button i tell ya!! Feels like yr in a Ferrari!! LOL
Anyway....theres my guide, any questions fire away!
Dave