Is there any way to change my 4 spoke multi-funtion steering wheel for an A4's steering wheel with the tiptronic shifting buttons and have them work of my 2001 A6? or maybe could it be possible to change the volume controls into up and down shifting? thanks

Some A6 owners have installed the RS6 steering wheel with the paddle shifters. Not sure if anyone has tried to do the A4 wheel.

You can do a search at www.audiworld.com