Red truck is in storage at the moment and I don't have any pics saved, but I run a pretty decent setup.
Pioneer Premier DEH-P880PRS head unit w/XM and Bluetooth adapter
DLS Reference series 4" and 6.5" interior component sets (2-way, passive crossovers)
2x Denon DCA-3400 50Wx2 amplifiers (interior speakers)
Lanzar OptiDrive 2500 amplifier (approx. 1000W at 4 ohm mono, subs)
2x Rockford Fosgate P3SD412 shallow-mount 12" subs (dual 4 ohm voice coils, wired to 4 ohm mono)
Custom sealed box, approx. 1.5 cu/ft per woofer if I recall correctly.
Subs and Lanzar are behind the seats, Denons are under the seats. Really hated to put anything under the seats at all, but I didn't really have any other choice in a standard cab. Subs are crossed at roughly 100hz with a 12db/octave slope. From there the mids and highs start taking over.