I've been looking at getting one of these :
http://www.densionusa.com/x/index.ph...=375&Itemid=79
I went to BMW and enquired about the IPOD kit available in the states, costs about £150 inc fitting there. They cannot get them but do sell a jack plug that is installed on the back of the stereo and then fitted either in the glove box or elsewhere in the car for £39.99 (bargin!) O and then he said "It must be fitted by us, which is another £180 + VAT" yeah right mate!
As it stands my standard CD player plays MP3 disks so haven't done anything about it!!!