On www.realoem.com for the Motorola TCUs there are 2 types of U.S. CDMA control units; one is listed as a Telematics Control unit (ex: 84116952218) and one listed as a RMFD Telematics control unit (ex: 84106978528)...what's the difference? These 2 in particular have the same production date range.
Any idea what RMFD stands for?

See:
http://www.realoem.com/bmw/showparts...=84&fg=10&hl=7