bought my car wired this way, I'm assuming it was an old school cell phone antenna. Ive never taken one apart much less seen one. Was there a hole drilled to install this unit ? thx
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is there a hole in my windshield ?
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Originally posted by browntown View PostThe fact that you've never seen a car phone antenna makes me feel very old.[sigpic
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Like Cabriolet said, there is a coil on each side of the glass. Power going through the coil on the inside creates a magnetic field which induces a current on the coil on the outside. Works just like the charger for a cordless electric toothbrush. Tesla had ideas using this for wireless power over miles of distance, but a lot of people thought it might interfere with the Earth's magnetic field and cause havoc.
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