I have a 2011 silverado 1500 LT that does not have a factory antenna installed, however i was told from other forums that as long as your radio has a cat button it can handle sat radio. i have a sirius connect scc1 from a ford truck that still has the service on it and was wondering what i need to install that to the factory head unit. is there a module that goes between the two or just a harness? searched the web for days before deciding to post this, thanks is advance.