JayJay said:
Ant - part of the decision depends on if you want them to light up with the engine off. Run from the fuse box will allow them to be switched on if the ignition is on. Running from the low beam will only allow operation if the engine is running (and the low beams are lit).
Also, I don't know if the CanBUS circuit would read a high amp fault powering both the headlamps and the PIAAs off the low beam circuit.
I run every accessory back to the fuse box, that way there's a single line of power I can follow (and isolate). Simple minds appreciate simple things, and minds don't get much simpler than mine.
JayJay
What I want is to be able to use the PIAA's with high or low beam, to be able to switch them on/off via the PIAA switch and for them to only work when the ignition is switched on. I don't want them to light up when the engine is off, would suck if I parked for a few hours and left them on. Btw when I hooked up the lights, connected to the battery, etc., they would not work. Called PIAA and they said the white trigger wire has to also be connected to something.
Sounds like the fuse box is the way to go.
Seeing that this is technically the same thread I get to ask another question: What fuse do I wire the white trigger wire to?