Fuse problems? on 2002 Chrysler PT Cruiser

First of all, I have a 2002 PT Dream Cruiser. Last week I started to hear a whistling sound whenever I got up to 45mph. Now I've noticed that it squeaks when I first start the car up & go at slower speeds, then when I get to the 45mph it whistles. A few days after I heard this, all of a sudden the door locks didn't work & no fuse is flashing on the dashboard. I changed the fuse for the door locks, but it didn't work. Any idea what could be causing this problem?

Asked by for the 2002 Chrysler PT Cruiser
Did this ever get resolved? If so, what was the problem?