"windows, mirrors, trunk. etc" what else? There is a module for some of the items you mentioned. Really without a SDS check it will be a pain to track down. There have been issues with the seats giving issues causing a across the board failure (shorted wiring) To answer the question I am unsure about a central relay for the malfunctions you are referring to other than a convenience module located in the firewall area. Sometimes the solder joints deteriorate and need to be resoldered or module replaced.
I have not yet (thankfully) not had this problem yet. Has anything spilled in this console area? I will take some pics. of my relays and such later and post.
You may want to disconnect the battery and re-connect and see if your windows etc
problems reset. B