d675

How much power and what type of box?

I'm also torn between the 15 Icon and the Havoc which would be best for daily use and which sundown amp 1500 or 1000?

I have a Toyota Tundra Regular cab with a sealed 12" Kicker 06TCVT122 400RMS at 2ohms powered by a Kicker ZX400.1 and was looking upgrading to a 15" AA Havoc in a 3.5cuft ported box @ 30hz with either a Sundown Audio 1500D or 1000D. Heres some pics of my available space LxW 60"x18" However, do to my limited space I don't think thats possible so I was also thinking of getting the 15 in a sealed box or two 12 sealed, what do you guys think?