CableJive dockBoss, Audio Input Adapter, Black Play any audio device through your iPod or iPhone dock or docking cable Translates the audio signal from a standard 1/8" audio plug to the legacy iPod or iPhone 30 pin docking system dockBoss electronics are powered by USB, but if your docking station or cable is older and provides charging via Firewire the dockBoss has a built-in charge converter and will still power on without issue Plug the female 30 pin dock connector onto your iPod or iPhone dock, the audio jack into your device, and enjoy Works with all speaker docks and many car iPod systems. Not currently compatible with Volkswagen factory installed iPod/iPhone integration kits