90-05 Miata Speaker and Sub Panel – Leroy Engineering
Paco Motorsports - Version #2 of the ND Miata Footwell Subwoofer. Fits like a glove and adds LOADS of legroom once you remove the factory BOSE unit under your feet! Also integrating
Subwoofer - MX-5 Miata Forum
90-05 Miata Sub and Speaker Kit – Leroy Engineering
Foot well subwoofer project is finally done : r/Miata