Also find the door open/ignition on chime annoying so would like to switch it off for good. But if done with VCDS would something as petty as this prompt the dealer network to red flag the car as modified and then not honour the warranty?
Little surprise I was pleased with was to find the car came with a dog guard (correction: retractable cargo net) as I wasn't aware it was included. Always have mine fixed up to the roof as it is something else to reduce the glare from tailgating Range Rovers etc with their headlights beaming in.
Defo would not invalidate warranty if done via VCDS as you just enabling or disabling something via vcds.
There are lots of options and functions that are in your car that have not been enabled from factory and VCDS can enable them.
See here
http://www.audizine.com/forum/showthread.php/278256-Cool-VAG-COM-codes