ok so i had a wrx and i noticed that at low speeds i could hear a rattle in the trunk or rear area. only at low speeds tho. At first i thought it was just something loose in that car. but when i got rid of the wrx and got an sti i noticed that theres the same rattle! only at low speeds tho and i cant figure out what it is! does anyone else have this happening to them? can you please help me and give me some ideas of what it might me thanks.