Built specifically for your A3 ashtray location, this spec.dock model comes standard with an integrated 3-foot cable which terminates in a female 30-pin connector identical to the one on the bottom of your iPod or iPhone. This means that you can simply plug your existing connection cable directly into the spec.dock extension cable and enjoy the same functionality you've always enjoyed with none of the tangled, messy wire frustration! Your device will seat firmly in the Apple Universal Dock Well molded into each unit, and multiple iPods or iPhones can all be used in the same dock via interchangeable inserts - one comes with each order, and additional sizes are available. Please note that this spec.dock model is only compatible with an existing connection cable in your car (either factory-installed or aftermarket - eg. DENSION, DICE, Connects2 etc) that plugs into the standard 30-pin dock connector on the bottom of your iPod or iPhone. Please visit our iPod Car Kit section if you also need to purchase a kit.