Hi all, my car has a factory fitted ipod lead in the glove box (car year: 2006). However I can't get it to work at all. The cd/radio I have is a audi concert sound system. I have the manual and the separate ipod manual and it says to press the CD button twice (as though it's a CD changer). However every time it says no magazine? Will it only work with old ipods or something? I've only tried a newish ipod and an iphone 4s.