[Jetfire]

The previous owner of my car installed a cell phone antenna. It's the kind that somehow passes through the rear window. The outside antenna is mounted via double-sided tape to the glass, while the other side is attached in a similar fashion and leads (presumably) to the mounting location of the phone, wherever that was.

How do these antennas work? Was any drilling of the glass involved during installation? I'd love to just pull off this damn thing.