The wires on the P bass pickup have just changed slightly - from the yellow wire - take the outer sheath wire (silver) to the back of the corresponding vol pot, the other wire (looks like a white inner protective sheath) to the pot lug. The wire to the bridge will be out of the other wire that was part of the kit - just needs to be wrapped around one of the screws of the bridge, passed through the hole under the bridge to the control cavity and joined to the back of one of the pots.