Hi y’all,

There’s a lot of different threads out there on different forums for tapping into different places on different cars for different purposes, but I’m having a hell of a time figuring out which is which so I figured I would just ask.

I am installing a boost gauge in my USDM 2017 Fiesta ST. I need to know what to tap for the following:

• 12V Constant Power
• Ground
• Headlights or Taillights (powered on only when headlights are on)
• 12V Ignition Power (power only with key on)

I would like to tap into the headlight switch below the vent as much as possible so I don’t have to mess around with running wires and fuses across the car into the fuse box in the passenger kick panel, but can do that if needed.

Thanks in advance.