So I have distinguished which of the 2 black wires comes from the truck and I have attached that to the post with the red dot. (I turned on the truck and the voltage of one of the wires increased)
With the truck on, the battery did not show charging, I think because it is already charged. Now when the truck is off, the red light on the vsr is still on indicating energy is going somewhere. Back to the truck? Or is it that the VSR is still energized? ,4 amps are being used when with nothing attached it should be .03.
Still confused if I have right or not.