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All 3rd Millennium speakers are specifically designed for an oem fit in the stock headrest boxes and doors in the Miata. But they were also designed to perform and sound better. Much better.

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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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It's Easy! 

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. Features an exact oem fit with 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

What's New at 3rd MillenniumOct. 19 - Rainshields! We've been asked by quite a few customers about what they can do for rainshields for their Miata door speakers. So we're now offering the product we use: XTC baffles. These are easy to cut and install and we can offer a pair to you for $12.95 with free shipping. Click here.

We're pleased to introduce our M200 replacement speakers for the 2nd generation Miata windblocker! Like all our speakers, these are plug-and-play and provide a huge sound improvement for your 1999-2005 Miata. Product details here, YouTube video of an installation here.

Our latest YouTube video is live! See how easy it is to install our M200 or M600/M800 speakers in your Miata!  Check out our YouTube channel at