I purchased the MILVIZ C310R from the MSFS2020 MARKETPLACE! i just want to know how to get this product working as advertised. I mean it's not exactly cheap. I have uninstalled and re-installed several times, but it's still the same. NO RADIOS! EFB DOESN'T WORK! PROP FEATHERING DOESN'T WORK! Other than that, the plane flies beautifully! Any constructive advice would be gratefully appreciated.