Sorry only just noticed this message! I bought the car like that, As far as I'm aware the previous owner just had the grille sprayed matt black. All the chrome bits are sprayed. Other than that I'm not sure if anything else has been done?
Hope this helps mate
I saw photos of your car in a thread and was wondering what you have done to the grille. Where did you get it from and what did you do to the 'split' inbetween the two grilles?
I have a 2004 A3 and wanted to do somthing about the split grille other than change the whole front bumper over to a new one.