Hi! I need your help and the help of all the ford maverick fans. I have a trouble, I have a 1977 4 door maverick with a 6 in line cylinders and a four pin regulator, and I have a brown cable with a light brown line on it, I do not know where to connect it, if I let this cable unconnected the battery will discharge and if I connect the cable to 12V. the engine will continue running even if I turn off the key, so I must open the hood and disconnect the cable, may somebody help me???