For last couple months getting "NO SIGNAL" in a.m. Afternoon and evening there are no issues with signal and radio works fine. XM Fan forum indicate could be antenna or receiver. XM radio say stuff about repeaters and location and antenna view. This is odd to me and would like to know if anyone else has experienced or suggestions. In the meantime I'll swap antenna cable with what came from pioneer. This should eliminate the receiver over the shark fin. Didn't know a shark fin could go bad though.
Pioneer Tuner - MVH-P8300BT
Pioneer Satellite Receiver - GEX-P920XM
Toyota stock roof mounted antenna connected via VIAS SFA12F cable