Sound Proofing

MacCool

Dunno. I was pleased by the sound quality on cell phone calls, but when I got the 4S I was especially pleased that Siri is able to coherently transcribe text and email message as well as respond appropriately to commands.

My guess is that insulating the rear deck and outside of the wheel wells will make a big difference. Another thing to do might be spraying some rubberized undercoating inside the rear wheel wells under the liner.

Red__Zed

this was the one thing I saw make a huge difference for some people. If there is a lot of loose "crap" on the roads you drive, a rubberized coating on the wheel liner is huge, plus it helps with the annoying low speed rock plinking.



FWIW, I never needed any coating on my car, and 95% of the time I was able to make calls without complaint from the listening party.

Figtuna

Thank you for all the postings fellas, I got a lot of good feedback here and some excellent suggestions. Looks like I'll have to resort to using sound insulating material in the rear wheel wells, doors and the cargo area. While I got ya here...I'm have a full set of tires installed this weekend. I'm switching to the Continental Extreme Contacts DW and hoping that might also quite things down to a dull roar.
I remember the tire roar that my 2004 350z had when I got to the end of the tread...it was deafening. I'm hope that the skins will help remedy most of the noise but I'll definitely be installing the insulation material regardless.

Thanks again
Steve