Hi everyone, I am having a little trouble getting the front diff to lock, I know there is a broken wire somewhere in the wiring for the thermal plunger in the front diff and it will lock sometimes and other times it doesn't lock....

My question is.... my thermal plunger has 2 black wires going to it, if I connect new wires to it and feed 12v to it with a toggle switch will it matter witch wire I connect the 12v to???

I have a posi lock coming but it will not be here before my trip and I would like to be able to use the 4x4 if needed....