It's far from plug&play. You need a separate AHL module (located behing glovebox). It needs wiring for voltage, ground, brake light signal, K-bus and CAN-bus. The xenon level sensors which are normally connected to LCM need to be connected to AHL module. On the headlight the supply for leveling motors from LCM is not used anymore. Instead LIN-bus wires from AHL module. Other headlight wiring is the same originating from LCM.

I have adaptive lights on my E53 and personally I think it's not worth the hassle.

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E39 530dA -02 M-Sport Messing metallic
E53 X5 3.0dA -06 Sport Stratus grey
E70 X5 40d -12 M-Sport Space grey