[clean2g]

I suck at electrical but.. well you can ground either one on the chasis anywhere of course, but the positive connections are always tricky especially if you want them to turn on with the lights or something. I'd probably tap into the headlights/driving lights. I could never figure out where those wires were and I was partially lazy so I just shoved it into the fuse box on the headlight fuse, but the gauge is on whenever the car is on. Also sometimes if you just tap into any random positive connection the gauge might ALWAYS stay lit up so becareful; just gotta find the right positive wire. If you can trace the wires going from the fuse box you might be able to make out what's what. Or if you know what the wires are going into the ECU you could just tap into that. I think they have some wiring diagrams for boost controller/afc install on vfaq.com. Hope that helps.