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, Hertz, Audison, Soundz, Focal, Audio Control, Alpine, 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. 

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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. 

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

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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, toppers, grill guards, running boards, bed rails, bed liner, tonneau covers and so much more. We are also the exclusive Rhino Linings Applicator. Our protective coating is backed by a nationwide warranty! Check out our Tuff Grip Rhino Linings Products today!