BMW uses two cables, one goes from ECU to near the headlight, and another patch from there to the camera. It helps from service perspective or repair perspective to only stay on the outside of the firewall and not have to run a new cable through the firewall. But since you're putting a new cable anyways, its upto you to either follow their model or just go direct. I went direct because its easy enough to remove/replace if need be and the firewall still remains intact.
The Aliexpress cable is NOT direct replacement BUT again, you can easily shave off the tab/guides that are used as the key for mating connectors. this applies to both ends of the cables.
I have yet to find an off the shelf cable that would have the light blue (universal) connectors with one end being weatherproof and other end being regular HSD and building your own is a bit cost prohibitive with the rosenberger connector install tools being pretty expensive: