EllisoJo

Those wires are for the heated rear window. I am guessing that your f or TF was never fitted with an HRW, but I believe that ALL cars had the wiring "ready to go" for an HRW. A switch & a solenoid have to be installed to "Wake up" those wires, so unless you buy a hardtop or fit a glass rear window with heating (which my "new" one has), and I believe all rear glass screens all have.