Mine is an 05 hemi. I got under the hood last night, pulled the belt and played around with the pulleys. The power steering pulley seemed to have quite a bit of play, I could wiggle it maybe a quarter inch back and forth, plus I noticed that the pump and most of the components in that area were saturated and way more rusted than anything else underneath, although my power steering fluid is still full. I think I may have found my problem. The whine mine it's making is very loud but it doesn't whine when it's idling, only when I rev the engine.