where is the easiest 12v power source to steal for a/f gauge

[1500psi]

i need a couple options thanks.

 

[funjunkie]

The kill switch wires

 

[Motleyone]

Is it a fancy A/F gauge? Can it be burned up with a surge? If so relay it and use the ignition power.

 

[andre162]

I have had good luck using the cigarette lighter power. it has a protected circut. i did this with a innovate on my apex and a prologger on my nytro. this source only has power when the sled is running so you dont hav any draw issues.. good luck..

 

[DARKO]

Rob it from Blue, not red.