Need help locating where to attach the black wire PS4 1215 (description inside)

I was cleaning a 1215. At the end i decided to take the fan out. When I removed that last plate that has the black wire attached, (the silver plate you can leave on if you arent removing the fan) and the wire fell off when i lifted it. I can not see anywhere on this plate where it was attached. Please help me locate where and how I can put it back on!!
I have photos but it wont let me put them in the post. I can email someone the pictures. Please help.