The file names in SYNC are numbered. Each number stands for a different application.

APP = 14G381
VOICE = 14G391
NAVIGATION VOICE = 14G422
GRACENOTES = 14G423
MAPS = 14G421
RADIO LOGOS = 14G658
LICENSE = 14G424
UTILITY = 14G386

Voice – 14G391
A = ARW, CZC, DAD, DUN, ENG, FIF, FRF, GED, ITI, NON, PLP, PTP, RUR, SPE, SWS, TRT
B = ARW, DUN, ENA, ENG, ENI, ENU, FRC, FRF, KOK, MNC, MNT, PTB, PTP, SPE, SPM, THT
C = ENU, FRC, SPM
D = ENA, ENG, ENU, GED, MNT, PTB, RUR, SPM, TRT
E = ENU, MNC, MNT
F = ARW, DUN, ENG, ENI, ENU, FRC, FRF, MNC, PTP, SPE, SPM, THT

Navigation Voice – 14G422
A = CN (ENU, MNC)
BA = EU (DUN, ENG, FRF, GED)
BB = EU (DAD, FIF, NON, SWS)
BC = Possibly CZC, PLP, RUR
BD = EU (ITI, PTP, SPE, TRT)
CA = NA (ENU)
CB = NA (SPM)
CC = NA (FRC)
D = ANZ (ENA, ENG), SA (ENU, PTB, SPM), TUR (ENG, GED, RUR, TRT)