Quick wiring question (should be fairly simple)

AutoEuphoria

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'08 CPW Mazdaspeed 3
I'm installing a methanol injection system right now, but am a little confused in the instructions on a certain step.

On the wiring diagram it says "Yellow - ARM switch"

Later in the instructions it says "Yellow wire connects to Arm switch (+12V power to turn on the system"

On the controller unit itself it says "Yellow - IGN" or something like that.

So what am I supposed to do with this yellow wire? It's the AEM kit, in case anyone has dealt with that before. Should it be hooked to switched power (like the cigarette lighter fuse)?

Thanks for any help...I figured the rest out, but this one had me stumped.
 

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