2008 chevy ext cab build

[Eric Maxson]

Wanting a good low playing monster!! Equipment...2-alts, 8 batteries, 6-15" sundown SA subs with 6-AP 2000. Trying to stick with only building in the ext cab part with out sitting clear on the dash, I could do cut thru or pull out back window and use a topper but trying to avoid it. Has anyone seen 6-15's done in a wall low tuned in this style truck? Any ideas or pictures would be great! Need a plan so I can start my build. Rough area to work with is 59" wide 40" tall 28" deep

Thanks in advance for any ideas

[ToNasty]

Split the charging systems. You are pcm controlled

[Eric Maxson]

2Nd one is on a external regulator