[intrcptrbird]

just about all 5x7 will fit into a 6x8 hole. They use the same mounting locations for both sizes. If I recall correctly you might be talking about the plate stly Pyle speakers with the smaller circular woofer and a small tweeter mounted next to each other on the same plate. If that is so i would STRONGLY recomend against buying those. I wouls stick with the oval shaped woofers with the tweeter and midranges mounted in the center.