[Bolobi]

Hi!
I have a 2006 325i EU. i had base audio with professional head unit (alpine) just Cd and aux. I have purchased a proff head unit with built-in USB and BT. I changed it and it works without any codeing.
After this i retrofited a Logic7 system, for try i coded the old original alpine head unit, just changing im Rad2, from stereo to top hifi with Ncs Expert. And it works well
But i cant manage to make this with the USB BT built-in head unit, just changing in Rad2 the stereo to top hifi not working. No sound and no EQ in menü.

What did i wrong?
I didn't add VO, that can be a problem?
Can someone expert tell me the steps how to?
Thats my first codeing, so....