My last two gti's have had a really annoying squeeky creak that comes from the parcel shelf supports as soon as the car is moving so this weekend I decided I was gonna locate it fix it once and for all.
I removed the shelf supports and stuck some fabric tape along the outer edge of the supports where they bolt up to the bodywork and put a bit round the boot aperture where the rear of the support touches bodywork.
Voila........silence, no more annoying creaking squeeking to drive me mad.
Just thought I'd share that as I'm sure there are others being driven mad by the same noise.
If I could just get to the bottom of my creaking drivers seat now I'd be really happy!