Sirius Radio problem?

have a Xact Sirius radio model# XTR3, and it has worked fine for 4 years and yesterday my subscription was up and today I re-subscribed and the radio only reads 184 WEATHER CALL SIRIUS FOR SUB..., even when the antennae is not connected it still reads 184WEATHER..... Called Sirius and they cant figure it out, can you give me some help?