Radio Frequencies and Reception Factors
WARNING   WARNING:  Exposure to sound levels over 85 decibels could cause damage to your hearing.

Radio Reception Factors  
Distance and Strength   The further you travel away from an FM station, the weaker the signal and the weaker the reception.  
Terrain   Hills, mountains, tall buildings, bridges, tunnels, freeway overpasses, parking garages, dense tree foliage and thunderstorms can interfere with the reception.  
Station overload   When you pass near a radio transmission tower, a stronger signal can override a weaker signal and can cause interference in the audio system.  

MP3 and WMA Track and Folder Structure
Audio systems capable of recognizing and playing MP3 and WMA individual tracks and folder structures work as follows:
  • There are two different modes for MP3 and WMA playback: MP3 and WMA track mode (system default) and MP3 and WMA folder mode.
  • MP3 and WMA track mode ignores any folder structure on the music storage device. The player numbers each MP3 and WMA track on the music storage device. (noted by the .mp3 or .WMA file extension) from T001 to a maximum of T255.