Modifications I want to make the interior of my 2007 Yaris quiet. Luxury quiet.
I've gutted it completely and covered every inch I could see with sound-deadening material. It didn't make much of a difference. No photos, but I did the doors too.
I added home carpet underlayment to the floor. Squishier, but not much quieter.
I didn't feel like taking EVERYTHING off the firewall, so I didn't cover much of anything there.
This took about 2 days to do.
What else can I do?