If you purchased the stereo from us and your unit is android system, you can try this way.
Morten said:
I started the igo navigation while the radio was playing. Then the radio stopped playing!
I tried reset the unit but same same error.
All music playing or radio playing stops if I start Igo.
I used to be able to play music and have navigation running at the same time.
Do you have a solution?

Way:You need to open the Settings, then turn on GPS monitoring, so the igo navigation and the radio can play at the same time.

You can through GPS sound mode change it.

If you car stereo is wince system, you can open the setting, turn on GPS monitoring and Navi mixed.