The lead or wires can also be an indication of where your pickup came from.

Dean Guitars custom order thier pickups from billlawrence.com without chrome and with only 3 conductor leads, as the line of "Dimebag" guitars these pickups are intended for do not feature coil tapping.

Red coloured lead or wire (no photo) could be a sign of Bill Lawrence Products (EZ). Not 100% on this one yet.