You have the speakers, so basically all you need to do is connect the wiring, I'm gathering?
Since it's already connected at the head unit (cd or tape deck or whatever) all you need to do is connect them to the speakers, I believe.
Basically, you have 2 options:
1. Solder them. Get yourself some solder and a soldering gun and connect the speaker wire to the terminals on the back of the speaker.
2. Go to an auto parts store, in the wiring section, and grab a package of spade crimpers. Basically these are the female connector that will slide over the spade terminals on your speakers. If you have a crimper, all you need to do is buy these, strip the ends of the wire, crimp them on, and then slide them onto the speaker terminals.
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