That said i wonder if 6NK lets you use an Iphone/Ipod touch, as those things store thier data differently to Ipod nanos and Classics.... i bet thats it.
When my Ipod does go in, it goes in through Aux anyway so rear passengers can mess with the ipod and choose what music they want on.
Oh well if all else fails install a 3rd party tape deck and spend your nights recording songs onto your tapes, what was wrong with that?
