> I recommend ripping your car apart and putting sound insulation panels everywhere you can! Also replacing your sound system...

Ripping the car apart to install sound insulation might void your warranty.

I have a Bose sound system in my car with 11 or 13 speakers (they're everywhere), but the car is so poorly insulated that I have to turn up the volume quite a lot at highway speeds, or even after about ~ 35-40MPH.