Ah good. Remember to remove it from the unit and write it down somewhere safe, or its a thieves for the taking
As for the part numbers, use the one I have given you.
The part numbers there refer to different connections mainly used on the earlier GTIs which have a different radio setup, whereas the newer ones (such as yours with a K gateway) have the more modern beige and white connectors with the newer style terminal which the dedicated adapter is for
Plus its important to note that unless the proper adapter is used, AM radio and TMC will not work properly