There's a mysterious rattle from behind the dashboard if I drive faster than 90 km/h (road quality does not matter, this video was taken on smooth tarmac). I've taken all the dashboard parts out, but I can't exactly pinpoint it. I think its behind the clutch (there is some kind of black box) but I'm not sure. It doesn't matter if the clutch is in neutral or encaged, Or what rpm the motor is in. I've made a video about it:
Does someone recognize this rattle?