Hey would you look at that, I used those exact same speakers, got them from wal mart... ANyways, the speakers come with some wires that plug into two progs on the back (make sure to match the right sizes), basically your cut off those yellow plugs which were used on the stock speakers and you Cut down some of that black insulation tape to expose more wire, then you get yourself some wirestrippers, and strip those two wires... Then with the included new wires you just tie them onto the the wires in the car and use some Electricitains tape over the exposed wires... I suggest finding a way to tie those wires out of the way of the window though, or else whenever you roll your windows down your speakers will loose connection

And it doesnt matter which wire goes to what.