at first, sorry for my English...

I have installed a TTS voice ( SVOX + voice French Aurelie) on my IGO PRIMO V9 6 22 317625 for ANDROID 4.2.2 .
All works well without radio but when I want to listen to the radio with GPS, the GPS does not fades the soud of the radio.

This problem is not present when I use not TTS voices.

Does anyone allready experience this?

Many thanks !