I have an 03 Tahoe, and im willing to use the entire cargo area for my system. I have 4-12" Kicker CVXs and 2 Hifonics Bxi2006D amps. This will be a daily driver. I would like to know should I go sealed or ported and if so plz give details like tuning frequencies and volume. I have done sealed and ported with just 2 of the subs but my sealed box was undersized so I cant really say which setup would be louder.