Ok..... this may sound strange but there is a strange humming sounds comming from the bottom of my car. it's at the rear of the driver side. the last thing that got done to my car was replace the belt for the alternator/ ac/ power steering. but the sound isn't comming from the engine bay it's in the back of the car. Located on the opposite side of the exaust. I know it's no the exaust or my turbo back because i have had thoses in there for about a year now. It's really stange i hope it's not a major car issues that needs to be fix. any thoughts.....?? Thank you

 

i own an Evolution by the way

 

anyone?