How would you like to have your Android smartphone really hooked into your car? Not just plugged in to car charger, but attached to your in-car dash monitor. Android and Me reports that yellowbrothersf has posted a YouTube video of his Droid Incredible plugged into his car's dashboard computer with the HTC AV cable and two cable adapters.
If you decide to try the same thing, it's worth noting that you'll still need to actually control your phone with its touchscreen. Still, you can display your GPS nav up there or (if you are really daring) you can probably even get a movie running. Whether or not your car's in-dash monitor can handle 720p is another question altogether.