Car Audio Australia
EST. 2003 · SYD/MEL/BNE
Our in-house anechoic chamber and Klippel measurement rig are how every recommendation on this page earns its keep. Founded in 2003 by an ex-Ford acoustic engineer, Car Audio Australia is the only specialist car audio retailer in the country with a purpose-built measurement facility — and the only one that hands you the data behind the install.
Every guide below is written or reviewed by a Masterfit Certified Installer and checked against current stock. We treat this library as part of the install, not a marketing afterthought — if a diagram helps you wire it right the first time, the install is faster and cheaper for both of us.
Step-by-step teardown to first-play procedures for the most common head unit, speaker, amplifier and subwoofer upgrades. Each guide lists tools, torque figures, dash trim part numbers and the wiring loom you need before you start.
Browse install guides→Downloadable, vehicle-class diagrams covering single-amp, multi-amp, and active DSP networks. Fuses, cable gauges, run lengths and signal/power separation notes are all called out. Print and tape them to the boot carpet.
View diagram library→How to set crossover slopes, phase, gain and time alignment on Audison bit, JL Audio TwK, Alpine H800 and other DSP units. Includes the in-vehicle mic sweep protocol our lab uses during every Masterfit calibration.
Start tuning guide→Look up your vehicle make, model and year to see which double-DIN and single-DIN head units physically fit, which wiring harness is required, and whether your factory steering wheel controls, reverse camera and amplified BOSE system retain functionality.
Open fitment finder→A worked example for every common vehicle platform — door speaker cut-outs, depth behind the door card, mounting depth, and the recommended driver size given available airspace. Built from direct measurement, not catalogue guesses.
Sizing charts→The twelve faults our support desk logs every week, organised by symptom. Ground loop isolation, turn-on pop, clipping lights, Bluetooth drop-outs and head unit boot loops all have a written diagnostic path before you call us.
Troubleshoot now→
Marketing departments love adjectives. We prefer frequency response curves. The Sydney lab runs a Klippel NFS near-field scanner for driver measurement, an LSI LeLab reference DAC chain, and ARTA + REW for in-cabin verification. If a subwoofer is going in a Ford Ranger, we can tell you — in writing — what it will do at 35 Hz in that specific cabin with the seats up and the rear seat down.
Pick the path that matches what you already know about your car. Every result links through to a known-good part combination and a Masterfit installer who has fitted that exact system.
Tell us your year, make and model. We'll show every head unit, speaker, subwoofer and amplifier combination we have physically verified for that platform, with the part numbers and harnesses pre-pulled.
Open by vehicle→Single-DIN, double-DIN, floating 9-inch or Tesla-style portrait. Filter by chassis size and we'll surface every unit currently in stock that matches the aperture and depth of your factory opening.
Browse by size→6.5-inch component, 6×9-inch coaxial, 8-inch mid-bass, 10 or 12-inch sub. Filter by cut-out diameter and mounting depth to find drivers that physically drop into your doors, kicks and parcel shelf.
Filter by speaker size→184 accredited workshops across every state and territory. Search your postcode to see the nearest Masterfit installers, their current lead times, and which brands they hold Masterfit certification for.
Find a Masterfit installer→Component warranties are brand-specific and range from one to five years depending on the manufacturer. Every system fitted through a Masterfit Certified installer carries our separate Lifetime Workmanship Guarantee on the install itself — the cabling, the fabrication, the tuning and the integration. If a connection we made fails, we fix it for the life of the vehicle's ownership.
Orders over $149 ship free Australia-wide via express courier. We hold stock in three warehouses — Sydney, Melbourne and Brisbane — and any order placed before 2pm AEST is dispatched the same business day. You'll get a tracking link by SMS and email the moment the label prints.
Use the Masterfit installer search above to find your nearest accredited workshop, or call our support desk on 02 9874 5300. We'll match you to an installer with the right brand certification for your gear, share their current lead time, and forward your spec sheet so the bay is set up before you arrive.
In most cases yes — but the correct interface module depends on your exact vehicle, head unit model and camera type. Our fitment database lists the verified harness and interface part number per vehicle. If your combination is unusual, run it past our support team via [email protected] with your rego and we'll confirm before you buy.
Uninstalled gear can be returned within 30 days for a full refund — provided it's in original condition and packaging. Installed gear is covered under the Masterfit Lifetime Workmanship Guarantee for installation faults, and the brand warranty for component faults. We don't refund install labour on systems you simply changed your mind about, but we'll always help you re-fit the right gear at cost.
Yes. We offer interest-free finance over 12 months on systems over $1,000, and longer terms with competitive rates for higher amounts. Apply at checkout or call the support desk — most applications are approved within an hour during business hours.
Tell us your vehicle, your music taste and what you want the system to do. We'll come back with a measured recommendation, a known-good part list, and the nearest Masterfit installer with the calendar space to fit it.