Originally Posted by X5Strap

I have a 04 X5 with assist. I purchased a 84.21 6-945387-01 Bluetooth ULF module. This unit will not work for me because I have a V710 from Verizon. My car was built in 12-03 and I have just purchased and had installed the 05 assist/bluetooth module, the only one that works with V710.
If you have assist the ULF is easy to install and the part runs about $450-$500 complete. Don't let the dealer charge you 3 hours to install it.
If you're interested I plan to sell my ULF that I replaced with the new assist/bluetooth module. You can contact me at [email protected]