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I went to Shane’s recommended dealership today for a Nav replacement and wheel hop bushings. The dealership is first rate. They treated me very well and seamed to care as much about my car as I do and even made sure it was washed by a certain guy that is known to do a good job. It is Demontrond Cadillac, Chrysler, Dodge, Jeep. (yes I know a weird combination) and BK is the service rep if anyone wants to take their V there. I showed them James' post about using anti-seize lube on the bushings and they used it liberally. I looked under the car when I got home and they lubed them up well. They did a very neat job. GM still showed the PCM flash on my car as an open recall and the Tech must have recognized that my PCM was not stock and made a note on the service ticket that it did not apply to my car. Very cool, I did not have to say anything and it was done very low key. I like that.

On the nav question. The firmware version and all version numbers stayed the same on the nav unit. I asked XM to activate Nav Traffic but it does not appear to be working. Shouldn’t this "new" unit be capable of Nav Traffic?
 

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I had the exact same issue. I noticed that after the replacement my XM radio ID didn't change so my thoughts are the XM tuner is seperate from the radio. I'm hoping someone can validate my thoughts.
 

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I know of NO V owner who has been able to get NavTraffic to work on any car built before 1/18/05. What yet is the difference has yet to be discovered.

Anyone?? Bueller?...
 

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There was a guy from XM who who posted on the CTS forum a few months back that the NavTraffic function needs a different XM tuner (called it a Hip box, or something), presumably to decode the non-music stream of data and forward it to the Nav over the serial bus (as opposed to the audio-in connections). It wasn't installed in CTS's until mid-05, to my knowledge.

The XM tuner sits on the rear shelf next to the subwoofer. The Nav simply has the decoder software, not the actual tuner inside.
 
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