Chosen Solution
I have a a MacBook Pro model A1261 and I just reseated the Airport card. After I had reseated it I found a grey cable with a black rubber end that had no connection point. Am I missing some connection point or is this cable for another part? Thanks
I guess I can just answer my own question. My Airport card is the later one that has two antenna cables connection to it. The third cable, which is grey, is the middle antenna cable on the three connector airport card. This means that you can put either on in and that cable is an extra to connect to it. The black part on the outside is almost like a little rubber connector sleeve that keeps the cable from being exposed at the end.
More than likely it would be the cable to the bluetooth board: [linked product missing or disabled: IF187-077-1]