Custom EQ:
80 250 1k 4k 13k
-12 to +12dB, 1dB increments
playing with the 80hz bar, and it seemed to stay distortion free until maybe +8, but just leave the EQ and all other options off.
never used the FM radio until you asked about it. Totally depends on the station to be honest. The station usually listen to is 88.7 MHz, which comes in fuzzy (but that is really low on the frequency band, so most cheap players have a hard time with it). listening to 101.1 MHz right now, and it is alright. it is FM radio, so after listening to MP3s, the radio will sound like crap (Unless you have crappy mp3s).