Quote Originally Posted by mikigo View Post
Kikiupload but do you have my same car radio (navifly / makede)? apparently we have the same problem ', but only with tts. However, I tried in android settings to remove the radio app setting as predominant on the other apps but I did not have the desired result.
It's Mekede unit. But I had a few this Chinese headunits, and offten that radio app is not compatiable with TTS engine, and I tried a couple engines, always the same story. So this is not a problem with tts language pack or iGo, its that radio app, android system and tts.
Because when you turn off radio app, and go to android settings - TTS, and test it, it's working. But when you bring radio in background tts is not working.

There was guy on xda forum had problem with sound. He found this solution:

They suggested that I switch back to using the built in Google-TTS engine and the correct language in the android settings of the head unit. Then go into the head units GPS settings and assign the Google-TTS engine as the default GSP application. Doing this will mean that the hard GSP button on the head unit will no longer launch iGO Primo. But that is ok because I can launch it through the iGO icon/shortcut on the screen. Then make sure to go into the iGO Primo sound/volume settings and select the correct TTS voice, with the correct language that matches the language on the Google-TTS engine setting. Then properly exit from the iGO Primo app and reboot the head unit. That's it.