Are there any useful modifications for my 2006 Audi A4 3.0tdi B7 that I can do???

[dt-tdi]

Hi all
is there a list of any useful mods that I can do on my car on here please?
I would like to activate the single alarm beep for starters but so far have drawn a blank on how to do it.
Any help as a new user to VCDS would be greatly appreciated.
Thanks
David

 

[ruairi83]

B7 A4 VAG-COM Modification Walkthrough