So Im taking off my head, lng story short I got ONE wire left to remove to get my harness out of the way, its connected to the tranny and the connctor is WHITE and is a cylinder shape. I dont know hwo to unclip it, its pissing me off. It looks like theres a piece to depress to unhook it but it wont budge, any ideas? This is the last piece so I can get the harness out of the way to remove the head.