[font=trebuchet ms]If you examine the diagrams in the DiMarzio website (you obviously haven't looked at them yet), you will soon understand most of what you're asking about. This is not something I can readily describe in text, so please study those diagrams. The wires are simply the ends of each coil. Terms like 'hot' and 'earth' are not intrinsic to the device. They are things you define by the way you connect them.[/font]