The product is a Bose rear trunk subwoofer speaker bass box designed specifically for the 2017-2023 Mazda CX-5. Made in Japan, this OEM part number K123-66-960 ensures a perfect fit and quality sound performance. This subwoofer is not universal fitment and comes with the necessary stock number for easy identification and purchase. Ideal for enhancing the bass and audio experience in your Mazda CX-5, this Bose speaker is a genuine OEM component that meets the standards of the original equipment manufacturer.