Originally Posted by mikeeshaq
My bet [I could be wrong] is that it is the WHOLE module has to be changed to get what you want it is just not adding a module
The dealership didnt have a parts list that included just the sirius module and from what I have read in other places, the Sirius is designed / included with the My Ford Touch system so I don't think you are too far off. Dealership did say that the Ford radio vendor they contacted are in progress to reverse engineer it and hopefully come out with something in the near future (whatever reverse engineer implies - especially a solution that doesn't void the warranty).
Greatly appreciate the posts folks. I will keep digging and might try the vin comparison between vehicles as you suggested or call Sirius.