It depends on how the car integrates with the iPod. "
iPod out" is a feature where the iPod itself draws the UI and sends it out to the car as analog video to the whole screen. Looks similar to an iPod classic UI but with a dark background. It requires a special cable/connector that carries the video signal from the device to the car, and a screen that is capable of displaying video. Analog video is not supported with the new connector, so the adapter doesn't do it. If your car just retrieves the iPod's database or currently playing track info/album art to display in its own user interface, that will still work, because it can still talk to the iPod over USB or serial and get all that info.