Ever since I've had my car at certain reeves/load a get buzz/rattle .. it drives me nuts and trying to pinpoint its location is impossible.
Luckily enough I managed to blow fuses in the footwell fusesbox, obviously I took the fuse box cover off and being the lazy sod that I am I drove the car without the cover .. no buzz .. put cover on .. buzz buzz buzz .. cover off .. no buzz . Once I get round to it (as I said I'm a lazy sod) I'm going to cover all the edges that touch the bodywork with gaffa tape . Do it now ! Your a long time dead !!

Going to test now as i have it as well