Those of you running wideband O2s , does it need a direct source from the battery (via a relay or something?) or can I tap off something else in the cabin? I'm a total electrical dummy, and Im not sure if this is a particularly "sensitive" device that needs steady voltage from the battery, something that it otherwise might not get if its daisy-chained to other electrics in the car?
Sorry if its a dumb question, I need to ensure Im doing it properly so as not to get false readings or burn through the gauge/sensor! Its an AEM X-series gauge with LSU sensor. The manual basically just says it needs 12-14v on the red wire and (-) on the black - pretty straight forward.