Where is the antenna located in grand marque 1999?

It's in the top of the rear window, it almost looks like the defogger wires, except it's not a straight wire. Note: If you are having FM reception problems, especially when the rear window defogger is on, it could be that one (or more) of the defogger wires are broken. It'll be in one of two places. The Windwhield or Rear Window. It's a wire inside of the glass. Hope this helps. tj