Glad you asked. There really is only one way to do this. Very important: Begin by unplugging the first power cord. Then plug in the second one. Some say its best to unplug both ends before connecting the new one. But I have found it works just as well to unplug and plug in one end, then repeat at the other end.
One more thing. You will hear people talk about directionality. This is not what they mean. Does not matter which end you plug or unplug first.
One more thing. You will hear people talk about directionality. This is not what they mean. Does not matter which end you plug or unplug first.