Martinjmpr
Full Access Member
A few crappy cell phone pics:
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The on star in my 06 works where no one else's cell phones or cell plan/provider works. The vehicle has a stronger antenna than the phones. I know that on the 06 you can step up to turn by turn navigation.as far as onstar goes the answer is yes you have to have a subscription to use hands free calling. keep in mind that onstar uses cell towers for that so if your cell has no service neither does onstar, it's like paying for 2 cell phones.