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Toyota Yaris Cross car audio upgrade with hidden subwoofer

© A. Krivonosov
Japanese specialists upgrade the Toyota Yaris Cross with a high-quality audio system, keeping the interior factory-like and trunk functional. Learn about the hidden subwoofer and amplifier installation.
Michael Powers, Editor

Japanese car audio specialists have unveiled an intriguing upgrade project for the Toyota Yaris Cross. The crossover has been fitted with a full-fledged, high-quality audio system, while the vehicle's interior remains largely unchanged, preserving its factory appearance.

The core concept was to achieve the best possible sound quality without compromising the car's practicality. To this end, the team decided to install the subwoofer and amplifier under the floor of the trunk, utilizing the space typically reserved for extra storage. The system features a Carrozzeria TS-W1000RS subwoofer, known for its deep and fast bass response, powered by a compact Carrozzeria PRS-D800 amplifier.

All the equipment is concealed beneath a specially designed floor panel. This clever placement means the trunk retains its full functionality, allowing owners to transport large items or sports gear without issue. The subwoofer enclosure was custom-built to fit the contours of the trunk's recess, making efficient use of the available space. The top panel of the floor also includes dedicated slots that let the low frequencies escape freely, ensuring sound quality remains uncompromised.

An interesting design feature is the two-piece construction of the trunk floor. If desired, one of the panels can be removed to enhance the subwoofer's impact, which is particularly useful during car audio competitions. Despite these upgrades, the system remains relatively straightforward. The owner prioritized maintaining a two-way front speaker setup and achieving the cleanest possible sound, avoiding an overly complex equipment configuration.

Projects like this demonstrate that even compact crossovers such as the Toyota Yaris Cross can serve as excellent platforms for high-quality car audio. The key lies in professional installation and thoughtful equipment layout, which together can elevate the audio experience without sacrificing the vehicle's everyday usability.