Complete the crimp by crimping the larger tabs. If your crimper only does small wires like mine, you can use needle nose pliers to wrap the tabs around the wires. Make sure they are tight enough to hold on to the wire as shown in Pic 1.

Now that the connectors are installed, we will remove the white thermistor wires from the plug. You will see in Pic 2 there are windows in the plug where you can see the connector on the inside.

You will want to insert something pointy in this window while sliding the wire out of the housing. Inserting something in the window will compress the clip that holds the clip in the housing

You should be able to slide the connector out as shown in Pic 3.

Repeat this for the other wires so both are removed. Set the plug to the side as you will still use it.