Have had the receiver for about 5 years (purchased in Spring of 2006; never opened until Feb 2012). Set it up. Worked fine. Subscribed to Sirius satellite radio, in mid Feb 2012. Worked fine, until Sept 1st. I then began receiving this check antenna message. Antenna is plugged in correctly/snugly (contact). All else works, except for the satellite radio part. The plug is seeded properly. No frayed wires/broken pin connectors. Weird. I'd sometimes remove the antenna from the receiver (tripping hazard with antenna lead wire). Antenna pointing in the same direction. Would I need to replace the antenna connector in the receiver? Are these easy to replace/easy to find? I'm thinking the connector is shot (no type of static charge; I do live in a dustier area tho. I'm always dusting the receiver-to keep it relatively clean.). Thnx.