Ok,
As above. Forget the rears. They will overpower your fronts- the fronts need to be upgraded more. They are more important that the rears, so if you must have rears just get a simple cheaper 2 way reference series. Put the money up front, you wont be sorry!
Dont count on a factory amp, they are pathetic JOKES.
http://www.caraudioforum.com/vbb3/sh...d.php?t=288143
Thats a BOSE amp, imagine what an "inferior" monsoon amp looks like, lmao.
Lastly Im not a fan of Kenwood subs or amps. You could do better for the money here:
http://www.caraudiocentral.net/forum...ead.php?t=8687
You can get an amp and single 12" sub that would slaughter 4 of them Kenwoods with double the power

Oh, and it will sound better doing it too- an added bonus
