ShipFixer wrote:Lots of work disassembling the seats isn't it?
Damping the rear fenders was a huge improvement for me. The rear floor is way stiffer by itself than other cars I've done so the payback there isn't going to be as large.
Since I usually have the rear seats folded down for bikes, what I've done since then is just lay a couple sheets of foam and vinyl mat down over the floor in lieu of a liner. It's not as effective as if it were glued to the surface to form a real constraining layer, but it's effective. A lot easier than trying to piece meal heavy foam bits into shape under the carpet too...
http://store.secondskinaudio.com/luxury-liner-pro/
*Edit, ^just saw your link after writing this, second skin audio seems to have great stuff...
Actually taking the rear seats completely out is not bad at all, little harder than the front 2 but still not bad, maybe a 10 minute job unlike the fronts that can be done in less than 5 mins.
Yeah with the butyl mat that actually peels and sticks to the surface, it allows the sound and vibrations to be absorbed before they become airborne (what I used.) There's so many brands of this stuff and actually I will use a different one when I do the front. I am not 100% pleased with the quality of MurderMat...
What I will do for the front is a thicker mat (Dynamat Pro) and then lay down a layer of luxury liner pro
http://store.secondskinaudio.com/overkill-pro/ throughout the entire vehicle to catch the remaining noises.
I had my back seats out for about 3 months and realized quickly when I put them back in that they alone block and absorb a substantial amount of unwanted road noise. And, for the car stereo guys, completely changed the inside resonant frequency of my vehicle once the sub stage was re-installed.
Also, I put 2 layers over the rear fender wells, hoping it would help more and it probably did, however there is so much open space inside those wells once the 2 side interior trim panels come off that the "boom" effect noise we commonly hear is most definitely going to be a problem. So, I believe I need to fill in more of that empty space and I plan to do so with some carpet insulation that can be bought at Lowe's or Home Depot. Just going to start stuffing it in the holes in layers and might use some 3m glue in places or some metal tape. Been doing this years, there's a dozen ways to go about it.
You guys with rear heat and air might have a harder time working through this but it can all be done.