Never wash. I've had this antenna for a little over 3 months. Looks good, picks up as well as the factory antenna and is easy to install. Those are the benefits. Cons - it breaks, breaks off immediately (you can see in the photo), this is the result of driving through a car wash, and the manufacturer declares that "wash the car or not". If you buy it, remove it every time you wash your car. I would recommend going with something else
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