I haven't used a usb drive, but the idrive recognizes and integrates the ipod just as if you were using the ipod alone. It's terrific. If organization annoys you at all when using the usb drive, it's well worth buying an inexpensive ipod (even used off of ebay) and use that. It's great.

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CURRENT: 2008 BMW X5 4.8 ~ 2007 Porsche 911 Turbo ~ 2008 Range Rover

PAST: 2008 Lexus GX470, 2008 Audi S6, 2007 BMW M5, 2007 Chevrolet Tahoe LTZ, 2007 Porsche 911 4S Cabriolet, 2007 Audi Q7 4.2, 2006 Range Rover Sport Supercharged, 2006 Lexus RX330, 2005 BMW X5 4.4, 2000 Audi S4, 1999 and 2000 Jeep Grand Cherokee Overland, 1999 Porsche Boxter S and others from the older days.