All them antannas

I was out in the parking lot at work today and looking at a Yukon. Just out of curiousity, what are all of them antannas for? They had like 2 on the roof, one in a window, and I think a regualr tall one on the fender. These others were short, no more than 2" probably. They also had a satellite radio antanna, but I knew that. But what are them others?

XM radio, Onstar, AM/FM

The one on the side of the window is for a phone, the one on the hood is for the radio, and the two on the roof could be for anything....CB radio, XM radio, etc.

AntEnna, antenna.
also may be for a GPS system.

As posted above, the one on the rear window is for phone, the one on the fender is for the radio, the two on the roof, one is for the XM radio, and the other is the ON-Star antenna.

GPS antenna on these vehicles is inside the dash board, just above the radio. Hope that helps.

People still have car phones!?!? lol Thanks all