Ground Zero · 2016–2017
A purple metallic Mazda 323 Coupé taken full show-car — scissor doors, a Ground Zero system mounted into the cabin, custom door panels, aftermarket wheels and engine-bay detailing. A complete head-turner.
What we did
This Mazda 323 Coupé is one of 14 demo and show builds in the Galaxi Sound portfolio, and one of 4 built around Ground Zero equipment. It dates from 2016–2017, and the 22 photos in the gallery above show the finished work in detail.
Below, each part of the work list is explained in plain terms — what it involves, and how the same idea can be scaled to a car you drive every day.
Ground Zero is a German car audio brand best known for high-output subwoofers and amplifiers, with a strong following in SPL and show-car circles. Its bold, visible hardware makes it a natural fit for demo and show cars.
Other Ground Zero builds in the portfolio
Plain-language notes on every item in the work list — what it is, why it is done, and what to know before doing the same on your car.
Scissor doors — often called lambo doors — use a bolt-on hinge conversion so the door swings upward at the front instead of out to the side. The kit replaces the factory hinge, and the door has to be carefully aligned so it still closes flush, seals against the weather and latches properly. Gas struts sized to the door's weight let it lift smoothly and stay up. It's a signature show-car modification that needs periodic adjustment to stay aligned.
Mounting equipment in the passenger cabin instead of hiding it in the trunk makes the audio part of the interior design. It raises the bar on workmanship: every seam, panel edge and wire is on display, the gear has to be secured so nothing shifts under hard braking, and it can't get in the way of seats, belts or visibility. On a coupé with a small trunk, the cabin is often where the space is.
Custom car audio installs →Factory doors are designed around small speakers and thin plastic trim. A custom door panel gives larger or additional speakers a rigid, sealed mounting surface, aims them better and turns the door into a design element with its own colors, trim rings or lighting. Done right, the panel still clears the window mechanism, handle and lock, and it stays solid and rattle-free after years of opening and closing.
Speaker & door panel installs →Wheels set the stance of a build as much as paint or a wrap does. Choosing them is about more than style: diameter, width and offset decide whether the wheel clears the brakes and suspension and sits correctly in the fender, and the overall tire diameter affects speedometer accuracy. New wheels should be mounted and balanced properly, followed by an alignment check.
Tires & custom wheels →On a show car the hood is open as often as the doors, so the engine bay gets the same attention as the interior. Dress-up work usually starts with a deep clean and degreasing, then adds color-matched covers, painted or polished parts, and tidy wiring and hoses. Anything added has to tolerate heat, stay clear of moving parts and leave routine maintenance easy.
Car & engine bay detailing →Show and demo cars follow the same sequence as any serious system, just taken further. First comes planning: what the car is for, where the equipment can live, and how the audio will fit the look of the build. Then fabrication — enclosures, panels and trim made to fit that specific car. Then wiring, with correctly sized power cable, fusing and clean signal runs. Last comes tuning: gains, crossover points and time alignment set for that interior, by ear and with measurement tools.
The team behind these builds holds IASCA championship titles and an SPL world record, and the same crew handles everyday installs at our Kendall shop — from a head unit swap to a full custom build. On daily drivers we keep installs lease-safe, with factory-retention harnesses and reversible wiring, so the car can go back to stock.
You don't need a show car to get show-car workmanship. These are the services and guides that match the work in this build:
Head units, speakers, subwoofers, amplifiers, custom enclosures and full custom builds, tuned in-house.
Wheel fitment, mounting and balancing for your car.
Deep cleaning inside, outside and under the hood, including engine bay detailing.
Our guide to planning a system around your car, your music and your budget.
How the major brands compare by category, from head units to subwoofers.
Tell us your car and your goal — we build from clean factory upgrades to full competition systems. IASCA World Champions in Kendall, Miami.
