Thank you, but it has the ULF unit in the back and the bluetooth antenna wraps up around to the top of the entertainment stack (above the disc changer)... etc.

Is it possible it has already been retrofiited by the previous owner?
It had the telephone wiring, etc. from the factory. There is even an older phone adapter for the center console in the glove box.

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2003 X5 4.6iS - Titanium Silver