Tweaked the sound-deadening slightly to stop the rear-trim behind the seats rattling on certain low notes in the bass from the sub. Mazda’s bits of felt on it behind each seat were not enough.
I simply added some of the sticky-foamy Silent Coat in suitable places on top of the existing foil layer and on the B-pillar trims to damp out the resonances without making the trim bulge.
Towel and hat in the centre locker are enough to prevent the door rattling
Pics of the passenger side foams.
