Is there anybody that have experiences with removing professional phone SA638 (euro edition) and intall ULF with voice control.

My proffessional phone is bluetooth, but have no voice control. My car is a X3 3.0iA made 5/04

I have the motorola TCU with combined Assist and bluetooth

I have read a post on the forum (http://www.x3world.com/bluetooth/36069-change-vr-german-english-need-ses-jumper-plug.html
posted by I Dutch X3 owner which had a very similar setup but he had the separat voice control unit, my car does not even have the connector for it on the harness (the one you must install the SES jumper on).

I am now going to install 12th generation ULF and replace the handset with the eject box.

Do I have to consider this TSB: SI B 84 08 04

Removal/disconnection of the TCU also requires the central code (ZCS)/Vehicle Order (VO) to be modified. Since the
TCU (SA639) is factory installed on vehicles equipped with the "Premium" package, SA639 must be removed from the
vehicle coding data or the car/key memory features cannot be set.
If the ULF system is installed, the vehicle must be coded to add the ULF System (SA644) and activate Voice Recognition

(SA620), which will be added to the vehicle's coding data ZCS/VO – see procedure below.

1.
I now that the ULF is going to work with the eject box ref. the Dutch post.
but will the voice control work without changing the VO (adding SA620) ?

2.
And will there be any problems with car/key memory, if I dont change VO (Remove SA638) ?

3.
Is there any way I can find out if my vehicle is pre-coded for this options, without taking it to the dealer by means of using programming tools too accsess the vehicle coding (VO). Is there any hidden menus or something like that which can show me this ?