Ive got me a 05 e90 with business navigation and idrive which i should have by the weekend. Now ive asked elms bmw for a quote on installing the ipod connection and they have come up with the price of £550! I know it intergrates with the idrive but at the end of the day its a cable that plugs in and some programing + labour. I was expecting at least half that! Are there any alternatives fellas?