Just wondering if anybody else is having this problem, I use Turbo's EPE to convert my files to gpx. Then using Garmin's POI Loader to make my gpi file. The problem is I used to use a wav file as my Nuvi 3790 doesn't have a MP3 player so can't play mp3 files as my POI alert.
Now Garmin's POI Loader can only use MP3 files and not wav files as when I try to make my GPI file with wav files I get this message : Unable to convert .wav to the proper format. therefore the audio file was not transferred.