Hi guys, i don't know if you realise but the aurion lacks sound deadening. Most of the noise i hear is tyre roar, not engine noise. (i think the engine is very quiet) About 6 months ago i took all the wheels and fender well plastics off and applied some sound deadening material which sticks on. (rubbery type of material from supercheap auto) I had noticed a 5-10 decibel decrease in tyre road noise which was fairly good, but i still want to cut abit more of that noise out. Yesterday i pulled the carpet up on the drivers side and applied some more of this stuff to the floor. (from front of drivers seat all the way up behind the dash) I shall be doing this to all 4 corners, and share some pics. Once it is all done i will let you know what the outcome is. This very easy to do by the way, all you have to do is remove the plastic trim where the door frames are, remove some wire harness clips, and pull up the carpet. But i shall show you it all when i get some pics.