If you’ve ever installed a new stereo in your car, wired up a window shaking subwoofer in your trunk or tricked out your headrests with DVD players, then you’ve got an entry in the Car Audio Contest!

The only requirements for entry are that the project must somehow be related to mobile audio & entertainment and be installed in a car, motorcycle or boat. Entries can be as simple as a basic explanation of your overhauled head unit or speakers, or as complicated as the industrial capacitors that you welded into the back of your van to feed the power munching draw of your 5000W subwoofer array.

Enter now for your chance to win a 900-watt Kenwood Dual 12” Subwoofer with Amplifier, Audiophile Grado SR60 Headphones, Instructables Prize packs, and more!

Ready to start? Click here!

Multiple entries are accepted, but each entrant can only win one prize. Contest is open to entries from US, Canada [excluding Quebec], UK and Australia. Contest closes for entries at 11:59pm PT, April 16, 2012.

The Car Audio Challenge is closed.

Grand Prize

6 Prizes

Grand Prize (1)

GRAND PRIZE (1 Winner)

One Grand Prize Winner will receive a Kenwood 900-watt Dual 12” Bass package which includes a KAC-9105D amp, two 12” subs, and sound ordnance enclosure.  Winner will also receive an Instructables Prize Pack.

First Prize (2)

FIRST PRIZE (2 Winners)

Two First Prize Winners will receive a MTX Audio Terminator Series TNE212D 1200 Watt Dual 12” Sub Enclosure.  Winners will also receive an Instructables Prize Pack

Runner Up Prize (3)

RUNNER UP (3 Winners)

Three Runner Up Prize Winners will receive a Grado Prestige SR-60i Padded Headphones along with an Instructables Prize Pack
How It Works

Write an Instructable

Create a new Instructable that fits the guidelines outlined in the contest description above. To be eligible, Instructables must be published between Mar 5, 2012 and Apr 16, 2012 (11:59pm PT).


Upon publishing your Instructable you'll see checkboxes for open contests. Select Car Audio Challenge. If you have entries currently eligible for entry, it will also show up by clicking "Enter this Contest" on the right side of this page.


Entries are accepted by Instructables staff within one business day Monday - Friday. What matters is the submission time, not acceptance time.


A panel of judges made up of Instructables staff and respected members of the community rate the finalists. The averages of the ratings determine the winners.


When the winners are decided they will be notified and announced here on the contest page.