See images of cabin sound proofing

See sound levels before and after sound proofing

Door speaker before sound proofing

Outer metal wall – inside of front door.

Plastic inner liner covered with STP. This was a metal sheet on previous VWT6 version.

Inside of door card below. Before this lining the door used to rattle badly when bass was loud.

After the STP was added to the inner door card some foam was then overlaid.

Right door after treatment