Question about Cobra ESD 7000 Radar Detector
This is caused by electrical noise in your car's electrical system. Specifically, the problem is excessive alternator whine. This can be exacerbated by somewhat corroded contacts in your car's cigarette lighter socket or by a somewhat corroded vehicle wiring connection to the back side of the cigarette lighter socket.
One potential solution is to try a snap-on RF filter which is available at your local Radio Shack. You would snap this filter around the positive 12V wire leading to your car's cigarette lighter socket. Preferably, if there is enough free slack in the 12V wire leading to the cigarette lighter socket, you would wrap this wire through the RF filter twice before snapping the RF filter closed around the wire.
Posted on Apr 25, 2009
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Posted on Jan 02, 2017
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