just another space gray with new LCI headlights..
thanks to Fabian S. and all thread contributors for a great source of information.
retrofit was performed from on e89 z4 (2010 model) with bi-xenon headlights without AHL function to original LCI headlights with AHL
car was originally equipped with FRM3R PL2 (LED XE) footwell module which I had to replace with FRM3 Max Brose module (61359383050 SW180002HW13) to get AHL functionality.
additionally, I have add extra wires (61122348129) from footwell module to headlights to support SMC signals.
I could use OEM wiring without adding extra hardness (as there are free wires) but I wanted to make it 100% compliant with standard electrical schematic.
as on optional step.. software was re-loaded from the latest V56 using Ista/P coding just to prevent any errors or compatibility issues in the future.