Audi A6 3.2L AWD chirps/sounds on bumps
 

Hello, I have the car listed in the title of this post.

Lately, for some reason, every time i hit a bump, hole, or whatever on the road, my car chirps a bit.
I'll try to explain this as best I can.
I live in NYC, so the roads here are fantastic(sarcasm) on my way home 2 days ago, I heard some chirping over music. I turned off the music, and realized every time my car goes over a little hole, or something that would make the car go up/down I hear a chirp in the rear driver-side wheel. This happens at high speeds, or low speeds. But when i'm driving on a good road, no sounds. Only when I hit a little bump/hole, and I try to avoid those as much as possible.

I think it's my stabilizer links/ suspension.

Any tips/ideas?

I would bet on the sway bar bushings.

Thanks for the reply, how much do you think that'd cost me?

And how urgent is it for me to replace them?