Hi, I've a stock MY00 rs sedan that occasionally exhibits a high-pitched squeak/squeal during *normal* upshifting (in all gears). It seems to occur more often when the car/engine is "cold" and/or when it's cold outside. I've taken it to the dealer during the day but by the time I drive the 3 mi there the squeaking either "vanishes" or is barely audible to me (and not audible to the mechanic sitting next to me). It's been happening for a few months now. Any ideas?? Thanks!