hello, im putting a wall in my 01 ford taurus and i am putting in the 03 model kicker comp vr 15's. I have 2 at the moment and was wondering if i should add 2 more. I ask because i dont want to spend the money on extra subs if it isnt really worth it. This install is all out spl too. If the extra 2 subs are really worth it please tell me. Thanks guys.
