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my navigation system makes clicking noise and a noise that sounds sort of like it is searching for something - a signal? does anyone else have this? thanks
 

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I've noticed it too. It happens when I first get in the car befor even turning the key. Not sure if it's the same for you, but so far every thing is still working so I'm not too concerned... yet.
 

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It sounds like the disc is spinning in preperation to send info to the NAV computer. Sort of like what a home computer does when it first starts.
 
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