I want to cut holes in my rear deck, under the back window, and put like 1 6x9 on each side and like 6 6.5's in between them. Think that would sound good ?
Why would you want to do that??? Other than to say you got a crap load of speaker in the back window???
If you are going to buy new speakers, I would ditch the 6x9s all together...
and I know that back deack is big and all, but with that many drivers, I don't think you could get enough sepperation to tell right from left, it'd sound mono...
I'd say go with a decent 6.5" and tweet set and a decent 8" on each side and call it done...