Hook up to stereo

That's a very generic question, but generally you should find on the back of your speakers a pair of connectors either marked (+) and (-) or colored in Red and Black (or both designations). Similarly in the back of your receiver you'll find two sets of these, one for the Right channel and the other for Left. All you need to do is to hook up your Left speaker to the Left Channel in the receiver with proper polarity (red to red and black to black, or (+) to (+) and (-) to (-)) and do the same for Left.
Now you can use speciallized speaker cable (available from Radio Shack etc.) or simple flexible stranded copper electrical cable from a Hardware store. The gauge (size) of cable depends on your receiver's / speaker's maximum output power (watts) and the estimated length of cable run depending on the positions of your equipment. Generally : a 100W set with a run of 20 meters (60ft) at 8 ohms will need no more than 12AWG (4 sq.mm.) cable. But you can supply your exact info and we'll do the calc. for you.