About SMS Car Audio

SMS Car Audio is a brick-and-mortar 12-volt specialist in Marrero, Louisiana. We help customers plan, purchase, install, and tune car audio systems around the vehicle, the listener, and the way the system will actually be used.

Our slogan is simple: Where Music Matters. That means we care about clean installation, proper system design, reliable wiring, correct tuning, and making sure the finished setup makes sense for the customer.

What We Do

Car audio sales and professional installation
DSP tuning and sound system calibration
Custom subwoofer enclosures and fabrication
Speaker, amplifier, subwoofer, and battery upgrades
Factory audio integration and OEM sound upgrades
Jeep Wrangler and Gladiator audio upgrades
Harley-Davidson, motorcycle, powersports, SXS, and Slingshot audio
Custom lighting, Lit FX panels, and show build support
System planning, fitment help, and local install quotes

A Real Local Shop

SMS Car Audio is located at 5919 4th St, Marrero, LA 70072. We serve Marrero, New Orleans, Harvey, Gretna, Westwego, Metairie, Kenner, and surrounding Louisiana communities.

Why Customers Choose SMS

Car audio can be confusing. Fitment, impedance, amplifier power, enclosure design, wiring, factory integration, and tuning all matter. Our job is to help customers avoid wasted money and build systems the right way from the start.

Start Here

Call or text 504-289-8127 before ordering if you have questions about fitment, installation, tuning, or system design.