If you have any kind of subwoofer setup for the stereo in your Mazda 3 you likely suffer with annoying buzzes and rattles from your rear deck behind the rear seats. These two videos demonstrate an easy and inexpensive solution to your problem: Carpet under padding from Home Depot sandwiched between the plastic deck and steel structure. While in this video he uses the inexpensive variety, I would recommend upgrading to the Eco-Foam that Home Depot carries as it is moisture resistant.
Mazda3Carpet.com by MAZEURO
The Worlds Best Mazda3 Carpet Kit
For certain sub woofers will that not work depending on how loud the decibels can get? Or does it make the car hotter because it’s a type of insulation?
True about the power of your subwoofer negating effects of trunk rattle management.
But with some careful listening one can isolate what section of their car is the cause of the rattle and then focus their efforts on dampening those areas.
Great comment.
Dave