Zenec nc2011d

Hi

I have one Zenec nc2011D. I try install versions of Igo primo and igo nextgen but I have some problems

In nextgen the software is a little slow and one version the sound works good but sometimes cut the radio sound for 1/2 seconds and dont say anything ..

In igo versions the software works very good but sound dont work.

Someone can help me to choose the best version where sound works fine

Thank you