I've also frequently noticed a "fishy type" of smell coming from my a/c too. I was informed it was due to the filter. I still smell it, but only when I just turn it on.

I currently own a 1993 850 GLT, I've owned since 1996, I have had so many repairs on that car, I've replaced motor/engine mounts no less than 3 times. The transmission, radio, seats, power window motors, gas tank LOCK, sunroof motor, headliner, cv boots and joints, gaskets, pumps, not to mention the...