Re: buzzing under steering column? (googlymoogly)
I used to get that noise from my 1995 Passat, but not with my 1997 GTi. I asked my mechanic about the buzzing noise (mine buzzed somehwat randomly), and he said it had to do with the power steering motor just wearing down. Just a normal wear and tear thing that comes with owning an older car. This doesn't mean that you shouldn't get it checked out of course, since I don't know much, but maybe it can put your mind at ease.
As for it happening when you turn, it seems like VW electrical wiring is just pretty shoddy. I hear my turns signals clicking on my stereo speakers almost all the time, and my sensor lights are pretty jacked, and my car's a '97. Go figure.