The second fastener is located under the arm rest above the storage pocket.
How to remove audi tt door panel.
Possibly a hair dryer to warm up the door clips.
A small pot to hold the clips and screws as you remove them and to not lose them and a warm dry garage.
Three plastic wooden wedges.
To remove the door panels on the audi tt mk2 tools needed are a torx screwdriver t10 i think.
A dry cotton cloth.
Remove the speaker grille to access the first screw holding the door panel onto your mk3 audi tt.