Oh, and RE: the puddle lights. I'll get some pictures of them on later (when it gets dark!). I used the my-gti page for the pinout and verified it with a multimeter. I used 4 x 4-pin LED's in each mirror on a strip of veroboard.
At the moment the LED's pull around 1/2 of the current of a bulb so I get a "Electrical fault in circuit" warning. I intend to add additional LED's to bring the power consumpition up to the 5W of the bulb and kill the error. They work fine though.