I ordered Sirius Satallite radio when I ordered my car my from my dealer. I was just wondering how I would know if they installed the stock OEM Sirius unit or an aftermarket unit. I have a big bulky antenna on my windshield if that means anything.

 

There's your answer. That's the Satellite Antenna.

I like SIRIUS so much that I don't even listen to the radio anymore.

 

I also have the Sirius Satellite trial offer and am not able to get Howard Sterns channel, nor a couple of the Hip-Hop ones, anyone else run into the same problem?

 

^^i think you are still in the trial mode? you will get a letter from sirius with your info on it. it'll tell you how to activate it and then you will get all the channels. mine was like that when i first got it...