mdelvecchio Posted January 8, 2012 Report Share Posted January 8, 2012 hey folks, since this head unit doesn't have an embedded gps device and is more or less an external monitor for your iPhone, what does the hard wired gps antenna do? is the iPhone able to use it via the dock connector, overriding it's own? thanks Quote Link to post Share on other sites
ronsno Posted January 9, 2012 Report Share Posted January 9, 2012 It simply amplifies your iPhone GPS. In theory you get better GPS reception. Quote Link to post Share on other sites
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