They are the same; however, a ULF from a Euro car will probably come coded with the voice recognition turned off. A US dealer can recode the module to turn VR back on, but only if your car's build date is on or after when BT was introduced to the model.

I know... I have a 6th Generation module I bought from a guy in the UK, and the VR is turned off. I have a 1998 E38, so the BMW GT-1 computer will not recode the ULF in my car.

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2000 E38 750iL Highline Edition, Upgraded with the lastest 2006 X5 Electronics
MKIV Navigation, 16:9 Display, Bluetooth, TV/Video with Backup Camera, Sirius, and Aux Input