I am having a similar issue I believe!

I just retro fitted my 8/02 X5 with a 10th generation ULF module and I have my iPhone paired with it but I do not get the audible beep when I hold the "talking head" button and people can hear me but I can not hear them through the car's audio.

What are these speakers? I did this retrofit in my 2/02 M3 without any problems...

Please help