No signal to nav screen

[kukuryza]

check for correct video + and - cable. maybe you have to change.

Thanks for the feedback, it's been a while but finally got a signal, though through AV mode and connection pins 6 and 15. It turned out I had a short in the rca female plug.

Anyway, I have installed this image to my RPI 3 -> osmc_ibus_v4.img and now im trying to get it working.
Problem now is that Im using a 3rd party ibus interface based on silabs cp2102 chip, which btw is being recognized by the osmc and have drivers installed, however Im not able to make it work with the ibus communicator. When i try to test with the ibustester it gives me an error: Can not locate free Bus, please see the attached files.
This interface is having no problems working with the navcoder software.

Is there any way to make it work this ibus interface, like make configuration changes and etc. , or should I give up and go for Resler's interface ?

Thank you.