I'm thinking about finally putting a sub. I already got a head unit with some Kenwood mids and highs and amped them. Now I'm gonna add some bass. How much overkill would it be to put in two 12s? And also the best location for two 12s. Idk if I can fit them in he trunk. How hard would it bs to mount a 12 behind each seat. Also I like the kicker solobarics so they r square subs .