Chatter and noise

[Harrison]

I have so much chattering noise (high pitched) coming from the back of my car. I almost don't want to drive it. I took the spair out, took the rear seat out, took the seatbelts out, replaced the gas shocks that help lift up the rear hatch and I'm out of ideas. There is nothing loose in the hatch latch assembly or the exhaust. Does anyone have this problem that has had some success finding the source?

[socal]

its probably the top of the rear shocks put an impact on them. i always get this problem becouse Im afraid to over tighten them but i autocross and dont wont to brake or strip the threads. as its happened before but i change the shocks out often and it not just on one of my cars or just mine