Remote Starts

Heated Seats

Mobile Accessories

Rhino Linings

Bed Liner &

Protective Coatings

Mobile and Marine Audio and Accessories

Mobile FX is the leader in mobile and marine audio accessories in the Black Hills. We carry full mobile audio systems including car speakers, amps, dash kits, and digital sound processors from top brands like Sony, Alpine, Hertz, Audison, Phoenix Gold, Kenwood, Memphis and more. Whether you're looking for just a little extra oomph or a top quality sound system, we can help you find what you need, within your budget. 

When winter rolls around we're here to keep you and your family warm with remote starts and heated seats. Remote starts can be installed in almost any vehicle, automatic or manual. 

After the days warm up and it's time to hit the water, we have you covered with marine audio and accessories from WetSounds. Let us help you bring your party to the beach with boat speakers, subs and amps, wake towers, and more. 

When it comes to your truck, we have everything you need to accessorize and protect your vehicle. We sell and install a wide variety of truck accessories including full service bodies, grill guards, running boards, bed rails, bed liner, and more. We are also the areas exclusive dealer of Rhino Linings protective coating backed by a nationwide warranty. Check out our Hardline and Tuff Grip Rhino Linings Products. 

Book your appointment today

Our Services

- Car Audio

- Remote Starts

- Heated Seats

- Mobile Accessories

- Marine Audio

- Home Audio

- Aftermarket Accessories

-Rhino Linings Protective Coatings


Mon - Fri: 9am - 5:30pm

Sat: 9am - 4pm

Contact Us

1625 Cambell St Ste 4

Rapid City, SD 57701

(605) 716-0770

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