I have a 2000 Lexus GS300, and have had it since it was new. I have noticed that I can hear a squaky noise coming from the vent register that is located to the left of the steering wheel, all the way by the door. I have isolated it to the Climate Control System because if I turn off the CCS, the noise stops and only starts when I turn it back on. I have had it at the Lexus Dealer and they said they checked it out and my vent register was out of alignment and they adjusted it, but the noise is still there. Could it be the fan motor on my side? Anybody have any ideas?