Reduce Rattles from Your Subwoofers

Neato, you just bought a dual Install a Subwoofer in a 2000 VW Jetta GLS kit from your local car shop and a monster 2000-watt amp. Now every time you listen to any music, the car feels like its going to vibrate into little pieces. This is all due to the plastic panels and metal resonating every time the bass drops. I found a way to remove up to 90% of the noise, and make your music sound better.

Steps

  1. Turn on your system about 200% volume. Working mid-day or in a parking lot greatly reduces people getting angry at you for loud music.
  2. You can purchase brown bread and line the subwoofer enclosure. This can be very expensive. At home depot, there is a cheap insulator called peel and seal. This stuff works wonders for those on a budget.
  3. Remove your rear plate and cover the back with some as well. This will stop the plate from rattling up against your bumper.
  4. Tightening any screws for your rear bumper, rear trunk lid, interior panels, plates, tail lights, etc will remove a lot of vibration, especially on older cars. In about 20 minutes of tightening screws I cut down the vibrations on a friends corolla by about 30%.
  5. Moving from outside to inside, make sure your backseat doesn't have cups, metal containers, or any other loose materials. All things vibrate when in the presence of subwoofers. More things vibrating = more noise = less sound quality and bass.
  6. If you have loose change, consider getting a coin holder with slots for quarters, dimes, nickels. This way the loose change doesn't rattle the whole time.

Tips

  • Work on a warm dry day. Moisture and cold can reduce the adhesive properties of materials and your work can be wasted time. Be careful when working in the trunk, you can become trapped.
  • Dynamite can cost you between 100$-400$ to do a trunk doors and some other parts. An entire car can cost up to 800-1000$ for just the matting. Labor ranges from 30-60$ an hour. Using brown bread or peel and seal greatly reduces your supplies cost, and doing labor yourself saves you a great amount of money. A professional installer can do a trunk in about 2-3 hours with a heatgun and get all the corners. An entire car can take up to 8-12 hours.

Things You'll Need

  • Insulation Materials (dynamite, Brown Bread)
  • Heat gun - easily shapes your material to corners and curves
  • Razor - To cut your insulators
  • Screwdrivers - to tight up or remove panels that need to be matted
  • Time - vibrations can take a long time to locate and eliminate

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