Industry Leader in Aftermarket Automotive Lighting, Parts and Accessories. Since 2001, DDM Tuning specializes in automotive lighting solutions, and is your auto part market provider for HID and LED lighting products. We offer a wide range of products such as HID conversion kits, LED bulbs, ballast and accessories for cars, trucks, motorcycles and other powersport vehicles. DDM is an auto parts store known for providing high-quality reliable lighting solutions that enhance visibility and improve overall aesthetics of vehicles. Located in San Marcos, DDM Tuning was built on the premise to provide like-minded enthusiasts with a truly unique way to personalize their vehicles. Contact us at 858-633-2020.