Bmw n54 12v pre-crank help

[Charlieboy]

Having some trouble with getting power to the gauge before cranking the engine. I've wired exactly as it says in the drawing for my engine but I have noticed it say 2008 on the drawing onwards and my car is a 2007.
The gauge powers up if I crank the engine but it's not what the quick start says to do.
Am I meant to wire the pre-crank power to a different wire on my car?