There is a well known rattle in the uk N and n-line that sounds like its coming from the dash, more off a " buzz".
When it starts push up with one finger on light housing in the roof. If it stops rattling its caused by a cable up there. easy enough to fix by removing the lamp housing and adding a little tape/padding.
The sound from this buzz projects down the windscreen.
The other one we get (when the weather is cool) is is from the scuttle to winscreen interface. Pushing on the windscreen offers temporary relief. Fixed by removing the wipers and scuttle and and adding rubber padding on the clips where the window connects to the scuttle. takes about 30 minutes to fix.