Umm i don't know how to explain this but wheneva i hit bumps or sum thing like that, i can hear this massive shaking sound coming from the back of the cover, my spoiler is tight, its a tad loose but i don't think its that.

Common problem or is there an issue that i don't know?
I got my service at Honda coming up but if i tell them they will charge me a sh*t load to fix it.