Our Accessories are as broad as extra things to add to your radio like DVR Cameras, to adapters needed to keep features your vehicle came with from the factory. As we develop systems on new vehicles, the factories continue to develop new features on their vehicles. So some installations will require extra parts to retain features like Factory Amplified Systems, Multi Camera Systems, special camera adapting, and so on. We continue to develop new interfaces to make sure we can retain as many of your factory features as possible, while also looking at extra things that would make our radios cooler, like DVR cameras, a CD player, or a USB splitter. Sometimes the accessories available for the radio are what make the radio exactly what you wanted.