Sorry can't remember and the schematic gave me no clue, however you should be able to just connect them one at a time and test by moving the seat switch before mounting the seat.
There are other resources/forums that have a great deal of knowledge if not already familiar.
http://www.renntech.org/forums/index.php
http://forums.rennlist.com/rennforums/996-forum-60/
http://www.6speedonline.com/forums/996-11/