This question has been asked a LOT on this board and while searching around on Crutchfield.com out of boredom I found something rather interesting. It's the Alpine $1000 complete system.
I know half of you idiots will post "what does it come with" instead of taking two seconds to click a link so here you go.
Details:
» complete car system: receiver with iPod adapter, front and rear speakers, 12" sub with box, amplifier with wiring kit » warranty: 1 year
CDA-9847 CD receiver
» 18 watts RMS/50 peak x 4 channels » detachable face with rotary control and Quick Search » plays CDs, CD-Rs, CD-RWs, and discs burned with MP3 and WMA files
SPS-170A 6-3/4" 2-way speakers (pair)
» aluminum-coated polypropylene woofer cone with rubber surround » swiveling titanium-coated PEI balanced dome tweeter » fits standard 6-1/2" and 6-3/4" (oversized 6-1/2") openings
SPS-171A 6-3/4" component speaker system
» multi-layer pulp woofer cone with rubber surround » 1" textile dome tweeter swivels up to 15° (surface and flush mounting) » 2-way crossover (12 dB/octave high-pass, 6 dB/octave low-pass) » fits standard 6-1/2" and 6-3/4" (oversized 6-1/2") openings
SWS-1242D dual voice coil 12" subwoofer
» Kevlar-reinforced pulp cone with aluminum finish and Santoprene rubber surround » frequency response: 26-1,000 Hz » power range: 50-300 watts RMS (150 watts per coil)
MRP-M350 mono subwoofer amplifier
» 200 watts RMS x 1 at 4 ohms (350 watts RMS x 1 at 2 ohms) » low-pass crossover, 50-200 Hz, 24 dB/octave » variable Bass EQ bass boost (0-12 dB at 50 Hz) » 15 Hz subsonic filter
Now that's not going to be a hyper booming SPL competetion system. But if you're looking for a quick, innexpensive, and decent quality system just to upgrade your stock system then this is the one for you.
