I just got a C55 05 when I press "SAT" on the comand it will ask me to call Sirius with the ESN number, call them but cannot get my unit to sync with them. Do I have to get additional equipment or am I already ready to activate?

 

I had the same issue and had to reset my Comand unit.

 

So that's mean I should be all set to go that I don't need another tuner?

 

I called and followed their directions and was set up.