Help with boost gauge wiring

[Turbogoat324]

Hey guys so I wired up my new P3 (same as raxiom) boost gauge. Working great except I’d like to connect the 3rd wire so it auto dims with the rest of the dash. Does anyone know a wire I can tap into? I know there Are several signal wires so I was hoping someone would know one that would work. Thanks!

 

[Turbogoat324]

Never mind figured it out.

 

[dhmcfadin]

That an awesome gauge! I really like the shift light feature.