or ask.com or bing.com type your question into the search box. have the make & model # next 2 u on a piece of paper.also type in search box bose companion 3 computer speakers, factory service website. or customer service website
go to local.com in search box type Bose companion 3 computer speakers repairs & parts
if you think you can fix it yourself go towww.tigerdirect.com
and click on computer parts and then on audio input cables for a large selection of audio input cables.
You need to look carefully at your input cables, what type of connector jacks they have at each end and buy the exact same cable that has the exact same jacks an\t each end .
cables there are cheap, usually $1.00,2.00 & 3.00 but they also have expensive cables which are a waiste of your $. why buy a $15.00 cable when on the next page there is a $2.00 cable that will work just fine. It pays to look around for price before you buy.
But if you see a cable that will work, bookmark it so you can get back there,just in case you dont find a cheaper cable.