I'm trying to remove the cage fans in a 2009 mac pro. I'm following an apple guide and after I remove the processor tray, I have to remove three cables, spkr, front fan, rear fan. The guide simply says to remove them, but I've given them a little pull and they wont come loose, i don't want to pull them any harder till I know which way is right, it seems to be in two sections. Has anyone done this before? I phoned AppleCare and they didn't know, ha. Thanks.