You'll have to switch pin20 and pin16. - then the panel will remember the last used sittings.
The wires are difference sizes and have different size connectors. So cut the wires 10cm from the climate panel end and re-solder then the end with the connector from pin 20 to the "cable loom" end from the car to wire 16. Then visa verca on with connector end from wire 16 re-solder to the cable car loom end from pin 20.