Yes, it is the teleaid antenna---I have the identical antenna on my 02 -on the 03's, it is moved to the front of the car near the panorama roof line, and is shaped differently---was just at the dealers for my service, and was noticing the difference.
The teleaid antenna is in the same place on the 2003's. The thing at the front of the Panarama roof on the '03's is a wind deflector to reduce the booming sound that occurs in the cabin when the roof in all the way open at 35 to 50 mph.
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