http://img.photobucket.com/albums/v6...82BF3637A5.mp4

my mk3 2.0 cabriolet is making a weird rattly noise when you start it. it only does it when you start the car and doesnt matter if the clutch is pressed or not. it seems to be making a bit of a racket around the belts though.
anyone have any ideas? my Jeep had an idler pulley go and it sounded a bit like this but i know the golf doesnt have an idler pulley so im a bit stumped where the noise is coming from.
ive gotta do a 700 mile journey in 2 weeks so need to get it sorted!
thanks