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Great Miata Sound!

3rd Millennium offers high performance audio solutions for your 1990-2015 Miata - all at affordable prices. And all our solutions are plug-and-play. No drilling or modifying your Miata, no splicing wires, and no special skills are needed for an installation.

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Headrest Retrofit Kit

Just because your 90-97 Miata didn't come with headrest speakers doesn't mean you can't have them. Our Retrofit Kit is 100% oem compatible - that means a perfect fit and no cutting or modification to your seats.

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Frustrated that you haven't found affordable premium door speakers for your Miata? The frustration is over. Introducing the M600 and M800 door speakers for the 1990-2015 Miata. Exact oem fit with deep, rich bass. It's a HUGE sound improvement.


What's New

Our goal is simple. We want to provide hard-to-find and high quality audio and electronics products for our customers - all at a great price and with fast & courteous service.

Glenn - President & CEO

November 5: New videos! Installing our M600 or M800 speakers into an NC Miata! Watch here or on our YouTube channel.

And soldering! While all our speakers are plug-and-play, sometimes you need to get a bit more involved if you're restoring your Miata or fixing significant damage from a previous owner. So based upon customer request, we've put together a short video showing you how to make a perfect electrical solder connection everytime - guaranteed. Check it out at 

New item! Restoring your NA/NB door wiring? We now have the correct speaker harness plug connector available. Exact OEM match!

And our new Air Horn Kit is now shipping! Same price as the old Stebel kit but now with the much better quality air horn made by Marco of Italy. Sound like a Ferrari!

If you already have one of the compact Nautilus horns you picked up somewhere else, we are making our high-quality mounting kit available for you as a separate item. See our Stebel Installation Kit as a standalone item.

Just replacing the existing headrest speakers? We have another video that covers the simple installation of our Millennium-5 speakers. Watch on our site here or on our YouTube channel.

See how easy it is to install our products in your Miata!  Check out our YouTube channel at