i have a 2008 328i coupe, and ipod integration is installed so, i connected the ipod with the usb as instructed on the manual, and it said the first time i connect all the musics have to go in the car memory so it'll take long, but i did it and im waiting for at least 20 minutes now, and the ipod still says "do not connect"...is this how long its suposed to take or is osmething going worng? btw i have around 1600 songs