I have a Garmin 1300 and understand it does not have mp3 capability, however the voices are in ogg audio and wav files work in it so presume it has an ogg codec and also a wav codec on the device.
Would it be easy to add a mp3 audio codec to that also to make mp3's work?
I have looked at the system folder but cannot see any codec folder so guess they are hidden, but is it possible to add another codec?