Okay so in this PowerBook I got, there is a wire that was cut.

As you can see in the pics below, if you take out the battery, and unscrew the other thing, that's where it would attach too.

In the second pic, it shows where it is on the Board itself. If you take off the Keyboard, it's in the top left near the speaker, then that goes to the slot near the battery.

Hopefully someone can explain what that is and where I can buy it.