Hi everyone thanks in advance for taking time to help me.

Ive got a boost gauge i wish to fit. Vectra c 1.9 cdti 150 2007.

Ive searched everywhere on here an maybe its here some where but i cant find what im looking for.

1:- Ive been told i can not use a vacuum pipe.
2:- Am i correct in saying i have to fix into the pipe between the battery and oil filler cap. Just before the 90* bend.
3:- Would anyone have any detailed pictures for me to see how you have tapped into this pipe. thank you so much.