Static when music plays - Seiko Melodies in Motion Clock

Static from radio and cassette? Don't think they came with cd. But i would change it because repair cost may equal that of a new unit. About $100 could get you features like line in, bluetooth, and maybe even satellite radio.

That's pretty normal with built in connectors. For a workaround grab a cheap USB sound card from eBay or somewhere else. It worked for me.
High Quality External USB 2 0 3D Virtual 7 1 Channel Audio Sound Card...

If you are using optical, check the cable for kinks and the ports for dust.

The speakers maybe malfunctioning or the music players setting is set to static sound. Try checking it.

Static text such as a library of music constantly displayed will burn onto the lap-top screen, therefore, rather select your visualisation option showing a constantly moving pattern during playback. This is a much safer option.

Check the equalizer in Itunes to make sure you don't have it set to the highest values. This could be the reason why your speakers are playing the music with static.
Here is video that will help you access the equalizer: http://www.videojug.com/film/how-to-use-your-itunes-equalizer-2

Try to play on this :Video Download Studio,
if you still have the sam problem then convert the music to another format wiht it.

you need to install a filter on the power leads of the radio and the amp.  The filter in your electrical system have gone bad and your alternator is generating noise.  Have you recently done anything on the cars electrical system such as spark plugs or wires? 

Use third party headphones that are better and it will make the static go away

ok question when you play music is off cd or comp. or mp3 player
reason i ask is cause some cd formats and songs come with the distortion on them the manufacture does not see this cause mass production in cd's
turn onto a receiver fm tuner if static is still there power failure is common in the power house inside receiver these require maintenance and probably new power house conductor

dust in the system can create static also hair and dust are magnatized this can distort the sound quality professional cleaning of system is probably needed in this case