So I've had this "creaking" noise whenever I make sharp turns in say and under-ground parking garage (which is where I park my car at work so I always hear it) this has been going on since I hit 25k miles or so, I'm not at 49k. However now it is MUCH louder suddenly and if you put the car from drive (after accelerating and stopping) and shift into reverse, you hear the same creak. I can't tell which side it's on at all, but do any of you have any idea what would cause this sound? It's getting louder every-day now. Thanks in advance.