Brad you did good suggesting an Audioque sub but you told him about the wrong one. If you go with an Audioque, get the Audioque HDC3 12". It can handle more than the SDC can. If you want non mainstream brand audio then go with an Audioque HDC3 12" sub, MB Quart DSC 2000.1d, or Sundown saz 1500d amp. If you buy the AQ sub and the MB Quart amp you'll be spending about $500. Add another $100 or so for wiring, plus about another $40 for wood+other materials, then door speakers(Phoenix Gold 6.5" components) and a 4 channel amp(Rockford Fosgate P400.4) and you'll be at about your budget of $800.

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Mods: Xcal 2, K&N Drop-In, Line-X, DSG Heads/Corners, 6000k Hi/Low HID's, 6K HID Fogs, Foglight Mod, Throttle Cable Mod, 6.5" Digital Designs, Rockford P400.4, 2 Sundown SA-15's, MB Quart DSC 2000.1d, Cranked T-Bars, 285/75/R16 Nitto Terra Grapplers