hey guys, I'm installing this humbucker and the schematics say that there should be 4 wires. Red , green, white, black, and a "shielded" But as you can see, there is only the braided shield and one wire inside that. I already cut off a small portion to see if they were hiding inside but there isn't any other wires in there. Is that wire considered the "red"? And the braided shield the "ground"?