Hey "Pongpap",

The part number for the combined USB/AUX IN plug in the armrest for an E70 X5 is:

61 31 9 189 176

The problem is programming. Even if you replace the AUX IN plug with the combined USB/AUX IN plug in the armrest, BMW Canada tells me the USB will not work. No dealer, I am told, can program the USB after the fact (they do not have the software to do it) - the software is only available on the production line.

So bottom line - we are screwed and must do the retrofit and lose our CD changer.

If anyone can confirm that the above information is not correct, that would be great. Again, I am going from what BMW Canada is telling me.

Also, no issues having a CD Player, USB/AUX IN in armrest, and rear DVD, regardless of model (I have a 3.0 with CD, Rear DVD and AUX IN).

I hope this helps. Good luck!