Insert the environmental splice over the cut shielding block and insert the shield braid into it. The solder ring must go over both the exposed shield and the braid.

Insert a piece of heat shrink over the end of the wire where the shield and outer insulation is cut. This will protect the end of the wire

Heat the splice and heat-shrink with a heat gun. Ensure the solder flows in the splice soldering the braid to the shield.