im trying to hook up my mechanical boost gauge but am struggling with a few things well basically everything.

Can someone please tell me which line coming off the turbo is actually the vacuum line im suppose to put the t piece into (picture would be awesome)

And also where did everyone else pick up there 12v constant, 12v switch and ground from?

ive got my boost guage hooked up to the manifold vacuum line under the throttle body where the canister purge use to go..

the power is connected to cigerette lighter power, the ilumination is hooked up to the ashtray light and the earth is connected to one of the centre console screws that go into the steel bracket..