Horse Sense: Introduced as a factory option beginning with the '02 Mustangs, the Mach 1000 packs 1,140 watts of peak power (570 watts RMS). Ironically, Mach 1000 is not available from the factory on the '03 Mach 1, so you'll have to call Classic Design Concepts and plug it in yourself.
Mach 1000 has been around for a couple years as the Mustang's high-zoot killer sound-system option, but only from the factory. If you didn't get it when the car was new, you couldn't opt for it later-until now, that is. Ford supplier Visteon has made the Mach 1000 and its Mach 460 little brother available as aftermarket options through its dealers. If you're looking for the ultimate in OEM audio, one such dealer is Classic Design Concepts, which now offers the complete and factory-original Mach 1000 sound system as a plug-and-play upgrade for any Mach 460-equipped 'Stang.
The plug-and-play part is nice, as there's no need to cut into your car's wiring or even change speaker drivers. All your existing Mach 460 hardware is retained, and two 10-inch woofers are added, along with no less than four additional amplifiers. The key to the plug-and-play simplicity is the kit's add-on body harness complete with crossover circuitry, making for a nondaunting installation that shouldn't take much more than an hour or two. And if you think your Mach 460 sounds good (which it does), you won't believe the extra punch and quality of the Mach 1000.