A 100-foot screen illuminates a home theater. Custom speaker enclosures pump music into DJ Pauly D's Mercedes Benz. Neon-green LED panels set a John Deere Gator XUV aglow. If it has a screen, speakers, or both, chances are Sound FX's technicians can customize it into something that dazzles the senses. Working with brands such as Rockford Fosgate, Control4, and Alpine, technicians outfit homes with high-tech gadgetry such as integrated remote-control programs that can control your television, lights, blinds, army of clones, and stereo system from a single console. They bring a similar blend of creativity and practicality to automobiles, installing equipment such as backup cameras and remote starters.