I also have the same prob as the other guy with this thread, i dont have any idea how to do my mid/highs, i have 6.5 slots up front, and 6x9's in the back, i am putting a sx700.4 on them, easy with the gains though. Im debating 6.5comps up front, and plates in the 6x9 holes to fit 6.5 comps, to have 4 6.5 comps. OR should i put some nice 6.5 comps up font, and leave the Pioneer 5way 6x9"s in the rear. Modification is not a problem up front, or in the back for tweater places. Input?