I am attempting to replace my resistance wire following the directions in this thread: http://www.v8buick.com/showthread.php?t=204592 However, the wiring connector that goes into the firewall side of the fuse box is different than the one shown in the above thread. The terminal I need looks sort of like a bullet connector, only square instead of round. Does anybody know where I can get the correct connector? Part # would be great too if anybody has that. Thanks