Know what you need? Shop directly. Need help matching it? Ask SMS.
Customers can buy one product, build a system in stages, or have SMS handle the complete job. This page helps match products to the vehicle and goal without making professional installation a requirement.
Start with what you want the system to do.
Each path goes directly to products or the support page that fits the goal.
When matching help is useful.
Planning should remove uncertainty—not block a customer from buying products.
We first listen to what you want it to do.
We can sell you the right product, install it correctly, fabricate what the vehicle needs, and tune the finished system—but professional service is optional.
System Planning & Installation
System Planning & Installation A complete audio system should be planned before the parts are ordered. SMS Car Audio connects the factory signal, speaker locations, amplifier channels, subwoofer enclosure, wiring, electrical support, fabrication, and...
System Planning & Installation
A complete audio system should be planned before the parts are ordered. SMS Car Audio connects the factory signal, speaker locations, amplifier channels, subwoofer enclosure, wiring, electrical support, fabrication, and DSP tuning so the finished system performs as one package.
This planning is part of an SMS product sale, installation project, or paid design deposit. It is not an open-ended free service for a third-party shopping list.
Start an SMS System Project | Shop Products | DSP Tuning
What SMS Plans
- Factory radio, factory amplifier, retained features, and usable signal.
- Speaker locations, mounting depth, adapters, grille clearance, sensitivity, impedance, and crossover needs.
- Amplifier channel count, RMS power, load, heat, wiring, and mounting location.
- Subwoofer model, enclosure volume, port area, tuning, final impedance, and vehicle space.
- Battery reserve, alternator output, grounding, fuse protection, and voltage behavior.
- DSP routing, active or passive layout, EQ, time alignment, phase, and bass integration.
- Fabrication, lighting, finish, service access, and future expansion.
SMS Plans for the Actual Goal
A daily sound-quality system, an open-top Jeep, a motorcycle, a DJ product sale, a high-output SQL build, and a bass-focused truck do not need the same products. SMS starts with the result the customer wants, then selects the equipment and labor required to produce it.
Product-Only Customers
Customers outside Louisiana can purchase products without installation. Use online checkout where available. For restricted brands or special-order equipment, send the exact model, quantity, and shipping ZIP code. Published specifications and product details are provided on the product page.
Local Installation Customers
Local projects can include product supply, installation, OEM integration, custom fabrication, electrical upgrades, enclosure construction, DSP setup, and final tuning. SMS can inspect the vehicle before the final equipment list is approved when factory processing, previous work, or fitment is uncertain.
Planning and Fitment Policy
SMS includes detailed fitment, system design, crossover planning, enclosure planning, and integration work with products purchased from SMS, booked installation, or a paid design deposit.
SMS does not create complete system plans for customers who intend to use the information to purchase elsewhere. This protects the time required for real 12-volt engineering and keeps recommendations focused on customers moving forward with SMS.
Start With the Right Information
Send the vehicle year, make, model, trim, factory audio package, current equipment, photos, desired result, budget range, and whether SMS will supply the products.
Use the product, service, or support path that fits the job.
Customers can buy online or over the counter. Installation, fabrication, integration, and tuning are available when professional service is needed.
System Planning & Installation
System Planning & Installation
A complete audio system should be planned before the parts are ordered. SMS Car Audio connects the factory signal, speaker locations, amplifier channels, subwoofer enclosure, wiring, electrical support, fabrication, and DSP tuning so the finished system performs as one package.
This planning is part of an SMS product sale, installation project, or paid design deposit. It is not an open-ended free service for a third-party shopping list.
Start an SMS System Project | Shop Products | DSP Tuning
What SMS Plans
- Factory radio, factory amplifier, retained features, and usable signal.
- Speaker locations, mounting depth, adapters, grille clearance, sensitivity, impedance, and crossover needs.
- Amplifier channel count, RMS power, load, heat, wiring, and mounting location.
- Subwoofer model, enclosure volume, port area, tuning, final impedance, and vehicle space.
- Battery reserve, alternator output, grounding, fuse protection, and voltage behavior.
- DSP routing, active or passive layout, EQ, time alignment, phase, and bass integration.
- Fabrication, lighting, finish, service access, and future expansion.
SMS Plans for the Actual Goal
A daily sound-quality system, an open-top Jeep, a motorcycle, a DJ product sale, a high-output SQL build, and a bass-focused truck do not need the same products. SMS starts with the result the customer wants, then selects the equipment and labor required to produce it.
Product-Only Customers
Customers outside Louisiana can purchase products without installation. Use online checkout where available. For restricted brands or special-order equipment, send the exact model, quantity, and shipping ZIP code. Published specifications and product details are provided on the product page.
Local Installation Customers
Local projects can include product supply, installation, OEM integration, custom fabrication, electrical upgrades, enclosure construction, DSP setup, and final tuning. SMS can inspect the vehicle before the final equipment list is approved when factory processing, previous work, or fitment is uncertain.
Planning and Fitment Policy
SMS includes detailed fitment, system design, crossover planning, enclosure planning, and integration work with products purchased from SMS, booked installation, or a paid design deposit.
SMS does not create complete system plans for customers who intend to use the information to purchase elsewhere. This protects the time required for real 12-volt engineering and keeps recommendations focused on customers moving forward with SMS.
Start With the Right Information
Send the vehicle year, make, model, trim, factory audio package, current equipment, photos, desired result, budget range, and whether SMS will supply the products.