I got this info on
http://www.mustangweekly.com/2001/august/news/n13-08-3rd.asp
At the Woodward Dream Cruise, we learned that the 2002 Mustang will be getting a superb sound system upgrade as an option. The Mach 1000 system, which has been showcased for nearly a year in a special Mach 1000 Cobra convertible, is a 1000-watt system with amps and subwoofers in the trunk. No word yet about the cost, but it sounds great and will keep audiophiles from having to shop around for aftermarket sound equipment. Watch for additional information about the Mach 1000 system, and other 2002 Mustang news, in MustangWeekly.com as soon as it becomes available from Ford.
And I got this from :
http://www.car-buying-strategies.com/2002-Ford-Mustang.html
High-tech sound systems boost the performance of Mustang's cabin environment. Audiophiles will be delighted with the option of a speed-sensitive, Mach 1000 audio system with a six-disc, in-dash CD changer. The Mach 1000 delivers 570-watts RMS (1,140-watts peak power) with a 60-watt parametrically equalized amplifier, six 80-watt subwoofer amplifiers, four subwoofer speakers, four midrange tweeters and two 10-inch, trunk-mounted, acoustic suspension subwoofer enclosures.
The Ford Mustang also is available with an MP3 CD-player that plays regular or MP3 CDs with bit rates of 56K to 320 bps.
Here is a pic... I don't know if that is exactely what it will be like but, if so... It should kick a$$