The PowerBoard NX uses wireless sensors and magnetic switches to signal the boards to deploy. This means you don't need to hook into your factory wiring harness, and that's a very good thing.
But it does mean you need to get those magnets aligned properly. That's a little thing, but we're still going to show you exactly what's up with that.
If you're at all unsure where the sensors and magnets go, this video should answer every question.