See also:

Consistency of Readings
Always check the fluid level at least twice using the procedures described. Consistency (repeatable readings) is important to maintaining proper fluid level. If fluid is added, it may take 15 minu ...

Care of CDs and DVDs
If playing a CD/DVD, the sound quality can be reduced due to disc quality, the method of recording, the quality of the music that has been recorded, and the way the disc has been handled. Ha ...

FM
FM signals only reach about 16 to 65 km (10 to 40 mi). Although the radio has a built-in electronic circuit that automatically works to reduce interference, some static can occur, especially ...