Ok guys im helping my friend out with his install in his Ranger( 1 12" type R)..He listens to techno, rap, and rock..I need to know wat would be a good tuning for inside the truck?? and also box size..I was thinking 2.5 cu.ft at 36hz or so...and doing sub up port to the side?? does this sound good or no?? also how much port area should i give it? I dont know wat would be a good tuning for inside the truck..so ur help is greatly appreciated!! thanks guys