Hello, I have two speakers both with a plug to put into my computer. They are the same and there is no way to connect the two devices so I can only plug in one. I have tried plugging one in the front audio jack and the rear audio jack and sound only plays through one and only the left speaker. Is there some way to get them to both work and have one left and one right? I have a vostro 220s slim edition for my pc. I cant find the speakers because they seem old (I found them somewhere in my house and they dont have any stickers on them).