squeeky squekky!!! advice?

[yunwawa]

So latlely when I start up my 00 1.6 I here a screetching sound, however the other time I hear that is when I have the AC on while i'm in first through third gear. What and where is it coming from???!!! The AC compressor, the clutch, the belt conecting the ac components???? any help would be appreciated, on this 00' protege