if your phone found the BMW84364 (your last 5 digits of VIN), you have the BT unit, regardless if you can find it or not... it really should be below the CD changer, mounted at an angle but could be further below... mine was a BT/with TCU unit, 5th generation... you might have a later version - the 12th generation that i am using now is much smaller that the one that came with the car.
you also can test the voice recognition - press and hold the talking head on the steering wheel for several seconds, until you hear a beep... then say HELP, it will read out the commands that are available to you...

if you have the INPA, you can interrogate the BT module in INPA and get your PIN number from the screen...