Radio Problems

#1
My radio started acting crazy yesterday. It was making a weird noise(kinda sounded like somebody wadding up paper). I stopped the car to go into a store came back out and it was working fine. About 10 minutes later though it started making a high pitched noise. I can no longer hear the radio unless I turn the volume up to max and then its just barley audible over the high pitched noise. Anyone have suggestions?
 
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