Forum Discussion
MountainAir05
8 years agoExplorer II
I can tell only for my car. It came with a factory one and we do use it but do not update due to cost. With cell phones and portable system that have free updates We just don;t think it is worth it. Ours was $550 when a new one came out and that was almost two years for the first update. Sorry could not help you. I am sure other with weigh in with different stories.
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