Has anyone thought of using the Harman Kardon plug and drive ipod setup? I'm seriously thinking of going this route... I'm still unsure as HK uses an FM splitter and hardwires the ipod to the radio physically via the antennae port in the back. You control the ipod through a seperate screen and joystick type thing... looks pretty slick but wondering how well it works.
http://www.harmankardon.com/drive-1/how_it_works.aspx