Your browser does not support JavaScript! 3rd Millennium - Official Manufacturer's Site

Premium Miata Sound

3rd Millennium offers high performance audio solutions for your 1990-2023 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 or tools are needed to install.

Get Started

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.

Read More


Frustrated that you haven't found affordable premium door speakers for your Miata? The frustration is over. Introducing the 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

Our AD1 Kit is out of Stock. We are waiting on our supplier for a part for the AD1 Kit, so we are unable to ship M800s for the 1999-2015 Miata. We have plenty of M800s in stock for all other years.

M170Fs back in stock! We have received new magnet assemblies for the M170Fs and complete a production run - but we only have a limited supply. So order early!

M800s now available for the 2016+ Miata and Fiat 124!

Door Harness Adapters for the 2016-2024 Miata and Fiat 124! We now have the adapters to install our M800s speakers into the 2016-2024 Miata and Fiat 124 doors. No cutting or splicing wires - just plug them in. $5.19 for a pair. Standard 205/110 connectors. Purchase here.

More Videos! Check out our latest video covering the installation of our M170 speakers in the 90-97 Special/Limited Edition Miata! And for NC owners, watch our Air Horn Kit and Battery Disconnect installation videos - both in our 2012 Sport. There is tons of how-to content up on our YouTube channel.

I wanted to pass on how pleased I am with the products that I ordered. Between the 6 speakers, the rain shields and the battery disconnect I think I maybe spent a half hour tops installing. Everything fit exactly as promised and was so simple to switch out! Not to mention how thrilled I am with the sound of the radio now.

Keith - Ontario

Our Airhorn Kit is now available for the 2016-up Miata! Same great quality and instructions as for all the other generations, now shipping for your ND Miata. Click here.

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