Quote: Originally Posted by
skuller 
unless they have dead reckoning feature on their system, then yes they are having the same problem.
dead reckoning is overriding the gps signal if the signal is not making sense, with the sensor from speed of vehicle, heading (with gyro), etc.
OEM nav units do use speed/direction that help.
But the biggest thing is put the puck on the outside. I had mine in my dash, in my trunk, and now on the top of the trunk. In the dash (up near the plastic facing up) and trunk (magnetic mount stuck to underside of same metal it is on now), reception was horrible. Would take 20 to 40 minutes to lock, and would lose signal in heavy tree areas, and large coverings. No skyscrapers here, maximum city ordered height is 13 stories I believe
As soon as I stuck it outside, instant lock on cold boot, and reception in the garage with the door closed, I never loose signal. 2mm of metal sure does make a difference!