Damn same shit happened to my car. I dont mean to bash your thread but I just had the same problem, alot of squeaking for a couple days and all of a sudden the power steering completley goes out. So I had to get a $16 belt from AAP that went around the alternator, water pump and power steering belt. Now the car runs fine but squeals wherever I go and it sometimes goes away. I put some WD40 to stop the squealing but nothing worked as of yet. Im gonna check the alternator pulley and how its positioned tonight, if the pulleys not straight and lined up right, your shit will squeal.