Removing Series MM ashtray and grille

[Mr Spigot]

I am hoping to polish up the centre grill and replace the ashtray on my MM and generally tidy it up, but am not sure about how to remove the grille from the car. There are several bolts underneath, but I don't want to remove anything until I know what I am doing. Can anyone explain the procedure please?
Thanks.

[MM1949]

The grill was originally attached in the 3 threaded studs, 2 in each lower corner and one in the centre on the upper edge with 2ba nuts. The later design replaced the threaded 3 studs with plain cast studs and some retaining clips.
So put some PlusGas on the studs, early design remove the 3 nuts, later design not so easy gently lever the grill off evenly be careful as sometimes the clips get stuck and the cast studs break off.

[Mr Spigot]

Thanks. How do I access the nuts/studs?

[MM1949]

Remove the glovebox liner or from underneath the dash.

[Mr Spigot]

Excellent. Many thanks.