You'd need to get a 3.5mm stereo audio jack splitter (aka "headphone jack splitter").
It'll look something like the pictures below.
You should be able to purchase one for a few dollars pretty much anywhere you buy electronics or audio equipment (Radio Shack, Best Buy, etc.).
Once you have that, make sure both your computer and your monitor are turned off.
-Then, unplug the audio cord (that goes from your monitor to your computer) from your computer (you can leave it plugged into the monitor).
-Plug the splitter into your computer where the cord was previously plugged in.
-Next, plug the cord into one of the open jacks on the splitter.
-Plug the audio cable for your *second* set of speakers into the other jack on the splitter.
You should be able to turn on all the devices and have audio coming from all the speakers now.
Let us know if you have more questions!
×