»www.mp3car.com/show-off-your-pro···g35.html That is a really old article, but the concept is the same. The special cable that runs from the head unit to the iphone/ipod would plug into the back of the dock instead, then the iphone/ipod would sit in the dock. Its just a piece of plastic with a 90 degree adapter inside. female on one side, male on the other.