Interior Fuse-Wiring Help

[MarshX]

I’ve been looking into installing my electrical Prosport Boost gauge. I’ve completed everything except wiring. I have all the wires ready to go but just need to tap into fuses. The wires are Red(Constant) Black (ground) White(On with ignition) Orange (On with headlights). Now with that said, I know I’m going to obviously connect the black to a bolt inside near the footwell and the white with Fuse#1 which is accessory (10A). The other two, red & orange, are a little more tricky. I don’t really know which fuse to tap into for red and definelty don’t know which for orange. Any help would be great! Thanks in advance!

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[360glitch]

Use a multimeter to check and see which fuses are outputting 12V power when the car is running and/or when the headlights are on.