Here is what you need to do. Take the four speakers and group them in twos.
With the first set run a power wire from the amp to the first terminal of the first voice coil.
Then from the terminal were the first power wire was attached. Run a secound wire off that terminal to the terminal on the second voice coil of the same speaker. Then do the same again. Run another power wire off that terminal to the first terminal of the second speaker. Then from that terminal run a new wire the second terminal of the second speaker and your done.
Done the same with the ground wire. And wire the second set of speakers the same way and your done.
With the first set run a power wire from the amp to the first terminal of the first voice coil.
Then from the terminal were the first power wire was attached. Run a secound wire off that terminal to the terminal on the second voice coil of the same speaker. Then do the same again. Run another power wire off that terminal to the first terminal of the second speaker. Then from that terminal run a new wire the second terminal of the second speaker and your done.
Done the same with the ground wire. And wire the second set of speakers the same way and your done.