Base & Deluxe: cloth seats, single-disc cd player; traction control & cruise control was an option
premium: traction control; power drivers seat; leather seats; mach 460/ or mach 1000 radio; 6-disc cd changer
leather steering wheel
cruise control standard
here's probably the best place for info: 2003 Ford Mustang Specs and Features - MSN Autos
Thanks, dog. I been looking all day for this information. Woof!