Pl_guy, you would connect the red to the RCA center pin (as red is customarily +) and the white to the ring (body) of the WBT RCAconnector. The shield braiding can be separated at one end, and about half the wires trimmed back to where the outer jacket ends -- the other half you twist into a little (uninsulated) conductor and solder one end to the body of the RCA connector (or you can do it along with the white conductor when you solder the white conductor to the RCA connector body.) You only need to do this (with the shield) on one end. If the outer jacket has arrows, then you should connect the shield this way on the end of the cable that the arrows will point to. If no arrows on the outer jacket, I use a piece of green heatshrink denoting 'ground' (along with the red or black heatshrink for channel colors) on the end where the shield is connected to ground.
On the other end, only connect the red and white signal conductors. Then after carefully separating the shield wires, spread them out and using a fine scissors or cutter, carefully trim all the shield wires back to where the outer jacket stops. If you plan ahead ;~) you can have a piece of heatshrink waiting 'up-cable' to slide down and shrink over the place where you trimmed the braid -- just to make sure the braid doesn't touch the (ground) barrel of the RCA connector ;~)