The first track is ambient static, eventually developing into more 'musical' tracks, including some amusingly kitschy old ads.
Coincidentally, I've been diggin' an album called "Radio" by Exile (no, not the guys who did that horrible '70s "Kiss You All Over" song) that is made entirely from Los Angeles radio. Excellent head-nodding avant-hip-hop that DJ Shadow wishes he made.
Exile "Frequency Modulation"
Exile "Love Line"