Squeeeeekking noise, rear end noise Options

[LewFX]

Yes i did a search and did some research before i posted this one up. Its another annoying squeeking noise when im driving. it stops squeeking when im braking but it sounds like the car is winding down. Squeeks around 20mph or less in the rear. I just got new back rotors, mechanics said brakes have allot of beef on em so no need to change em. Im frustrated of going back to the mechanics every weekend and having them find it to no avail and making me feel stupid, even when i took them on a drive and of course no squeeks! I removed the hatch cover brackets since i noticed those were loose and made noises. I took out every plastic panel imaginable and removed every small piece laying around. Can anyone relate to this or am i just crazy.

[LewFX]

Squeeking video

Heres an attempt to record this annoying noise. i held my camera as far as i could while driving! im only going 20mph or less and i hear it 95% of the time. its 6.6mbs mpg video. ive replaced bearings, rotors, brake pads...what else besides blleding brakes can this be!!!!!!! im going insane, luckily i can blast music to not hear it but its not cool to see other people say nice car and then it squeeks and squeels.