Thank you for your question.
It sounds like the jack on your iPod is a bit dirty inside causing static. Here are some things to try, assuming that your tracks are all stereo and none of them are mono tracks.
- Power the unit off and the speakers off it they have a power switch.
- Get some rubbing alcohol and a paper towel.
- Pour a cap full of alcohol on the paper towel and grab the plug on your speakers.
- Twist the towel around tightly to clean the plug.
- Repeat this process on the earphone plug.
- Now take the speaker plug and push it in and out of the speaker jack about 20 times.
- Whatever you do, DO NOT pour any alcohol into the jack socket on the iPod itself.
If the problem continues, test your earphones and speakers with another product.
If they work fine, the jack in your iPod needs to be rewired.
If they don't work, then you may want to take your iPod, the speakers and earphones to your local Radio Shack store and show the Sales Associate what the problem is.
You may need to buy a stereo-to-mono audio adapter -OR- new headphones and new speakers.
If you still have problems after all of this, it may be time for a new iPod.