it's snowing! and CQ heater help

[Tom Van Ness <tom@reece.com>]

Well, today is one of those days when I bow towards my personal Mecca (Audi
Headquarters in Europe) and bow and thank them for quattro technology.
That's right, we got about 8 inches of nice, dry, sticking-to-the-streets
snow last night. My drive in was great. I'll be going out for lunch, too.


Now, my question. My CQ developed a chirp/whistle in the heater blower the
other night. It only started when it got really cold (zero farenheit). Once
the blower fan starts, I hear a high pitched chirp coming from inside the
dash. The only way to reduce the chirp is to set the fan to low. I still
get it though. Different settings (defrost, bilevel, etc) do nothing to
reduce it. And once the car has been running for about 20 minutes, the
chirp gradually fades away.

The chirp is driving me crazy! Any ideas?


TIA

Tom Van Ness
1991 CQ 20V
Silver/Black