M Codes on my 02 Boxster S are CO2??, XLF - Sport Exhaust System, O30 - Sport Chassis with more rigidly tuned springs & shocks, 139??, 340??, 446 - wheel caps with colores Porsche crests (these were removed as the former owner fitted the car with Techart Formula wheels), 454 Cruise Control, 490 High Fi Sound system, 502??, 551 Porsche windstop, 584?? and 696 - AM/FM Radio with CD Player.
I derived these descriptions from these sites
http://www.986faq.com/4-0/default.asp
http://www.industryfigure.com/berkeley/Porsche/Options/SOptions02General_10Aug01.htm
I have no idea if they are accurate or not
Any help deciphering the unknowns or with corrections would be greatly appreciated.
Should M490 "High Fi Sound System include the Bose rear speaker and subwoofer enclosure?
Thanks again to all