This KK USB cable works on the E53 right out of the box (with INPA, DIS etc) and is cheap.

http://www.one-stop-electronics.com/...&product_id=22

Won't work on later series cars with CANbus and ISTA D/P - you need the more expensive cable for that...

http://www.one-stop-electronics.com/...&product_id=16

__________________
Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)