my car hates me... hell it even tried to kill me when checking (ok, not the car, the stupid soft pavement)
Don't even have the cat shield attached. So it's something else rattling. Ah I thought, always rattles on idle once it's warm. Popped to the supermarket and back, reversed onto drive and sure enough it started rattling. Ah ha! Got out of the car, popped head underneath to listen, it stopped. Got back in car, it started. Got out, it stopped. Bugger.