This is the first time I have tampered with a car, the end o the day it's like a big Lego set!
I would advise putting the bolts in spesific tubs or boxes so you know which ones go back where! TTYey come with instructions, so can't go wrong realy.
Just a note, u need a special crew driver (which I bought from halfords), the instructions say you only need one type (a ts5 or some $hit), however the gti recuires two types ! So make sure you buy a small kit screwdriver(for a tenna or so) that you can inter change the heads on. If you decide to buy these lights, let me know and I can tell you the exact names of these screwdrivers. Also get some crystal vision bulbs, they complete the job