Audio Input Adapter for iPod and iPhone Docks, 3.5mm Male to 30-Pin Audio Adapter for Most 30-Pin DocksFemale A universal solution that allows portable devices to play their sound through most high-quality, iPod oriented speaker systems Provides an easy method for devices with failed amplifiers or speakers to remain functional Molded strain relief at all junctions for durability and long life. Play any audio device through your iPod or iPhone dock or docking cable Works with all speaker docks and many car iPod systems. Not currently compatible with Volkswagen factory installed iPod/iPhone integration kits