Squeaking noise

[tijanaw]

I have a horrible noise from the driver side rear tire/shock, it used to be on and off but this past week, it has gotten almost unbearably loud. It's embarrassing! Every time I go over a bump, however small it is or just driving a slow speed, seems like I have an army of mice in the car. I've taken it to the dealer and an independent shop, they can't seem to find what's wrong. I just can't stand it. After some research I determined it won't make it worse if I spray some "super lube" around the shocks.
Any ideas??
I'm just to a point where I don't wanna roll down my windows anymore.