I can only think of one other place it could be. The first 10 or so Sat receivers I installed were turned on the side and mounted near the e-brake. It was a major pain to get in and out. It stood on its end and was mounted between the e-brake and the side of the cab...

 

Maybe I just overlooked it when I popped out the glove box. Where should I be looking once I get that far? All I saw was a plastic wall ...do I have to unscrew that whole thing also?

 

Once I took out my glove box, I looked up inside the dash and there was a silver shiny box near the top of the space that appeared to be the Sirius receiver (I'm not sure though). Like I said before, it looked pretty difficult to get at from the glove box opening.

 

Well parts/service was right. Thank you for helping me out. It was not sirius though it was XM. The box was much smaller making it easier to figure out. What I cant understand though is why they mounted the antenna on the passenger side roof and ran the wires from the passenger side door all the way to the driver side E brake. Musta been a do it yer selfer from the last owner

 

Well AFAIK, Dodge never installed XM from the factory, only Sirius, so you are probably right about a DIY.