Always good info here! First of I should have never put a auto zone dura dont last altinator on the cat! Any way first one tests bad the new one still dont work and find that the (ignition)) wire didnt have any voltage to it lost somewhere thru the dash! worked fine for a day or two now even when the ignition wire is jumped nothing! So the 64 dollar question is it ok to get power from the coil for that wire?????