Central vent rattle

[Jas11n]

Thanks a lot Martyn
Could you access this from the passenger air filter or the central dashtop airvent grill if removed ?
The alternative is a hand up the back from the footwell ? or as the windscreen needs replacing could I access the area at that time.
As you can see i would rather not remove the whole bl**dy unit !!!!
Cheers
A

With the windscreen out you'd be able to access it (I think, IIRC, will check tomorrow on my little project car ) with the top vent out, you'd be just poking around in more heater/air ducting.
Still think the expanding foam idea is the way to go

[alg]

Alastair, here's the picture. See where the blue arrows are, they are under dash fixings that hold the hot air channel to the underneath of the dash. In the picture the 4 arrowed were broken on this dash so this one would rattle too! If you remove the centre 3 vents you will not be able to access anything, its not that simple. The only way is to remove the dash which is a PITA to do. I don't see an easy route to a fix......

Now the rattle is still there when the dash is hot (sun or heater to windscreen). I refuse to remove the dashboard. I do however have new front speakers to fit. Looking at the picture I should be able to reach the vents. If so what would be the best way to secure the vents at least partially.
Ideas please and nobody mention touch up pens