I did it finally! My subwoofer has 1200 watts powering it so if you sat in the back seat all you heard was subwoofer and no lyrics. So I added them so that my rear passengers can have a jolly time in my ride. I still have to add the grill which covers them. Or maybe ill just leave them like that. Hmmm, ill decide later. They sound beautiful. It's a better surround sound feeling. Took forever. They're 2 Alpine 6 X 9 inch, 3 way speakers. Fantastic sound. I'm extremely pleased with this project. WOOOHOOOO!