I have done 3g on Mustangs, they dont have a low charge light, I assume the cougars do.
Did you all hook the old black/brown wire back up with the new big gauge wire? Or did you remove the wires all together?
I guess I could eliminate the old wires and remove the bulb, if the idiot light is all it does. I have the full digital cluster.:sorry:
I used the old charge wires in conjunction with the new wire. All is well.