This morning I re-testing (KNA-G620T) with the audio files in WAV, PCM, 16bit, 44100KHz, mono and nothing. Although this time I converted to PCM standard and nothing new. It is caught with one of the wav (in my case with the announcement of the radar signal) is repeated a few times and reset the unit.
I have spoken again, this morning, Kenwood and I have confirmed that it should not work since it is designed for a single sound so I will have to wait to take out a new firmware (current is 2.70) with new settings where I hope to take into account this modification.
If you have any new ideas tested.
Thank you.