[Jim Branham]

Anybody ever seen one of these in a GT? Is this some rare factory option rear window defroster or just an aftermarket gizmo. It was in my GT when I got it, powered up by what looked like the speaker wires, I never did find the on/off switch for it though.

 

[kwilford]

Aftermarket. My GT had one of these when I bought it 25 years ago, and it made a bunch of noise and did NOTHING to de-frost the rear window. Now I live in Canada, so I needed a "defroster" rather than a "defogger". I removed it and installed an aftermarket wire grid on the window, which worked great.