I thank the experts in advance on this board for sharing their knowledge. You know who you are.

1. While sitting in traffic, I scanned the FM dial. My entertainment system classifies WXRT as "Rock." It also classifies WLS-FM as "Rock." WLIT if I recall is "Lite Hits." Okay. Who labels these format descriptions? The stations themselves? WLS-FM technically plays a lot of rock but their formal format is classic hits. WXRT is Adult Alternative. My system doesn't think so.

2. I have noted for a long time, while a song is close to ending, the title and artist of the next song is listed before it's heard/played. Does each radio station send a coded signal to automobile music systems? This applies to many music stations.

As always, thank you for your time.