I am adding an ssd to my 2011 27" iMac, but I cant find out how to get the vertical sync cable out (The first cable you have to disconnect). Can someone instruct me in this? I do not find the OWC video very clear in this aspect, nor the iFixit images. I pull, push, yell, scream, tear, and nothing happens. I believe there are a few small things to push on the side of the plug, but i have no idea how that is possible. I have the iFixit upgrade kit to help me.