Sirius service
 

Just bought a pre-owned '07 Lariat SC with AM-FM, 6 CD, and Sat radio. I called Sirius to sign up for the Family Favorite package + the Best of XM. I put the radion on Ch 184 for activation and after countless hits from Sirius, the signal that I get goes from Ch. 1 up to 184 but no higher. Could this be a module problem or does the radio in that model truck go no higher than
184? My Ford dealer sent me to a radio shop and he suggested unhooking the battery. Did that and still 184 tops. Any suggestions?????