No matter the condition of your 1988 DeVille, OPGI has the Audio Components you need to boost performance and get you back on the road. We currently carry nineteen Audio Components to choose from for your 1988 DeVille, and our Price Match Guaranteed prices range from as little as $9.99 up to $229.99. OPGI offers Custom AutoSound plus four other trusted brands of Audio Components for your 1988 DeVille, to help you find quality parts you can rely on. With OPGI's 45-day return policy and thousands of customer reviews, you can shop with the utmost confidence. Enjoy parts delivered directly to your home, or visit our sunny Southern California Showroom & Warehouse to check out our Audio Components in person.