Appreciated Terminator,
I am very busy with both cars
I want to summarize all modifications later to be reference to all
As for quick updates
I manged to move the alarm system as plug and play no issues as the harness was pre-wired
The trick part that the 4.8 is panoramic while the 4.4 is normal sunroof
Hence the ultrasonic module location is different
It is pre wired in 4.4 at middle light console while in the 4.8 is located in console containing roof buttons

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BMW X5M (2013)
BMW X5 4.8I (2009) M Package
BMW 535i (2012) M Package
BMW X5 4.4 (2004)
BMW X5 4.8IS (2005) Sold
BMW X5 4.4 (2002) Sold
BMW 540 (2001) Sold
BMW 325 Conv. (1995) Sold