Someone please tell me what's the easiest route from inside the car to the engine bay because I need to run a vacuum line to the boost gauge, be specific, and thanks

 

someone must have done this before ...

 

There's a hole behind the dashboard at the passenger side. A rubber piece needs to be taken out. Drill a hole and put the wires(vacuum line) in the middle.

The hole is about 30 to 40 cm above the ECU.

There is also a smaller hole that is 20 cm above the hole i just mentioned.

goodluck