hi everyone....just an update on my 06 gt mustang door rattle..it turns out it was the belt weatherstrip ???..(is that right?) the strip at the top of the door,anyway i used a piece of motorbike carb overflow pipe to fit into the channel of the strip forcing it to expand out and hey presto,,no more door rattling or glass rattling..reeeeesult.....the price of a new strip...jesus..to ship to me would cost me around £160 english pounds...naff that..aint paying that..anyway..thought i would let you know...happy motoring folks..