Car Audio Installation · Fabrication · DSP Tuning

Tell us what you want the system to do better. We’ll figure out what the vehicle needs.

Maybe the factory system falls flat when you turn it up. Maybe the bass is missing, the vocals are muddy, or the aftermarket gear you already bought never came together. Start with the result you want. SMS can match the equipment, installation, fabrication, factory integration, electrical support and DSP tuning to the vehicle so the whole system works toward the same goal.

Plan My Audio Upgrade Start a Service Request Shop Products

Fix weak factory sound Upgrade the system you already have Build a complete tuned system

How a project starts

Start with the vehicle and the goal—not a parts list.

Tell us what you drive, what is installed now, what has to keep working and what you want the finished system to do. From there we can recommend the right equipment and the amount of installation work the job actually needs.

01
Tell us the vehicle
Year, model, trim, factory audio package, current equipment, available space and anything in the vehicle that needs to keep working.
02
Tell us what you want to improve
Clarity, volume, bass, sound quality, appearance, cargo space, weather exposure, budget and whether you want to build the system all at once or in stages.
03
We figure out what the system needs
That may mean checking the factory signal, changing speaker locations, building the right subwoofer enclosure, matching amplifier channels and power, adding electrical support, fabricating mounting or tuning the system.
04
Choose how much of the job you want SMS to handle
Buy the equipment when the rest of the system is already figured out, or have SMS supply and complete the installation, fabrication, integration and tuning.

Choose what you want to improve

Start with the result you want to hear.

Each guide explains what makes that part of the system work, what commonly goes wrong and how the equipment and installation choices affect the finished result.

Everyday soundMake the front stage clearer, stronger and better balanced.

Speaker choice, mounting, amplifier power, crossovers, factory signal and tuning.

Open the speaker guide → Factory integrationKeep the factory radio and start with a signal that has actually been checked.

Factory amplifiers, split-frequency channels, ANC, retained vehicle features, interfaces, DSP and tuning.

Open the factory-signal guide → Bass systemGet more bass from the space the vehicle really has.

Real box airspace, sealed or ported design, subwoofer fitment, amplifier power, electrical support and cargo use.

Open the bass guide → Pro Audio / High OutputBuild a system that projects, stays clear and keeps the speakers protected when the volume climbs.

High-efficiency mids, widebands, compression drivers, horns, placement, crossover protection, amplifier power, electrical support and DSP.

Open the Pro Audio guide → Radio and camerasAdd CarPlay, Android Auto or cameras while keeping the vehicle functions you use.

Radio fitment, steering-wheel controls, chimes, cameras, factory amplifiers and the interfaces needed to keep them working.

Open the radio guide → Custom fit and finishWhen a ready-made part does not fit the job, build one that does.

3D scanning, CAD, 3D printing, CNC, laser work, acrylic, custom mounting and hand finishing.

Open the fabrication guide →

SMS services

Need one specific part of the job?

Use the guide when you want to understand what matters, shop products when the system is already planned, or send a service request when you want SMS to handle the work.

Factory signal and control

DSP & Factory Integration

Factory-signal testing, the correct interface or processor, channel setup and measured tuning built around the signal the vehicle actually provides.

Speakers and output

Speakers & Pro Audio

Daily-driver upgrades, sound-quality front stages, custom speaker integration and true high-output Pro Audio—with mounting, power, crossovers and setup matched to the job.

Bass

Subwoofers & Enclosures

Subwoofer selection, sealed and ported boxes, truck boxes, built-to-order enclosures and one-off fabrication designed around the vehicle and bass goal.

Power and reliability

Amplifiers & Electrical

Amplifier matching, power wiring, fusing, batteries, alternators, grounds, mounting, cooling and voltage support for the load the system actually creates.

Custom work

Fabrication, Acrylic & Lit FX

Vehicle scanning, CAD, 3D-printed and CNC-cut parts, amp racks, pods, panels, engraving, acrylic, lighting and finishing built to fit the vehicle.

Installation and setup

Installation, Testing & Setup

Fitment, wiring, mounting, factory-feature checks, system setup, tuning and final testing before the vehicle leaves.

System already planned?

Products, installation or complete build

Buy what you need or have SMS handle the work.

01 · Product onlyBuy equipment for a system that is already planned.

Choose this option when fitment, factory signal, amplifier channels, enclosure, electrical, installation and tuning are already figured out.

Shop products → 02 · Installation, fabrication or tuningHave SMS complete the part of the job you need.

Send the exact vehicle, current equipment, photos, requested work and what you want improved.

Start a service request → 03 · Complete systemHave SMS plan the equipment and installation together.

Choose this option when the factory signal, speakers, bass, amplifiers, electrical, fabrication, installation and tuning all need to work as one system.

Build the complete plan →

Built around the vehicle

Different vehicles change what works.

Cars and trucks, Jeeps, motorcycles, powersports vehicles and boats deal with different noise levels, weather, speaker locations, available space and charging capacity. Those differences change the equipment and installation.