Tower Audio recently upgraded a Subaru WRX with a Pioneer 9-inch AV head unit, matched with a high-power amplifier and custom-tuned subwoofer.
The goal was simple – deliver sharper detail, deeper bass, and modern smartphone connectivity while keeping the factory look intact.
Why the Pioneer 9-inch system suits the WRX
The Pioneer AVH-ZL9150BT 9-inch display fits perfectly into the WRX dash, offering Apple CarPlay and Android Auto for seamless navigation, music, and calls.
Its larger capacitive screen adds modern clarity to the cockpit while retaining easy-reach controls.
Amplifier and subwoofer integration for clean, powerful bass
To complement the new head unit, Tower Audio installed a compact multi-channel Pioneer amplifier paired with a sealed-enclosure subwoofer.
The amplifier provides crisp mid-range control, while the subwoofer delivers tight, low-frequency impact without overwhelming the cabin.
Professional wiring and noise control
Every cable was professionally loomed, heat-shrinked, and routed behind factory panels to preserve the WRX’s interior integrity.
Sound-deadening treatment around the doors reduced road noise, allowing the upgraded speakers and sub to perform at their full potential.
Results that speak for themselves
The finished system produced a balanced soundstage with clean highs and controlled bass that could be felt, not just heard.
The owner now enjoys effortless connectivity and concert-grade sound on every drive.
Project summary at a glance
| Component | Installed Model / Feature |
|---|---|
| Head Unit | Pioneer 9-inch AV Receiver with CarPlay & Android Auto |
| Amplifier | Pioneer GM-D8704 4-Channel Digital Amplifier |
| Subwoofer | Pioneer TS-W312D4 12-inch Dual Voice Coil |
| Integration | Custom boot mount, sound deadening, factory panel retention |
See more WRX audio upgrades
Each WRX audio project we complete is tailored to the driver’s taste – whether you want a full competition-grade setup or a subtle factory-style enhancement.
Tower Audio offers complete car audio and speaker upgrades across Melbourne using premium brands like Pioneer, Focal, Alpine, and JL Audio.
📍Upgrade your Car Audio with Tower Audio
Turn every drive into a concert.
Visit Tower Audio – Car Audio Upgrade Melbourne, or drop by our showroom to plan your own Car sound upgrade.
