I installed iGO Truck on a few devices (MIO C320, MIO C520 and Becker 7827) and encounter a strange problem: everything seems to be working fine, but after a short while there is no voice to tell you what to do.
I use regular iGO8 voices (no TTS) and installed iGO truck on the devices by copying the iGO.exe file and the sys.txt file to flash-memory (renaming iGO8 through Miomap.exe or (for the Becker) MNAVDCE.exe. ...