I know the wiring loom for the lights wont like this, but hey... i did it years ago in a Pug 205GTi & nothing ever went bang (very considerate of my car arnt i this evening, lol).
Gonna get a custom loom made soon anyways by a m8 who sometimes makes new looms for Corrados / Golfs etc...
EDIT: Oh & i also got the GT clocks installed now aswell
Cheers.
Pete