I have a 5.3 flex fuel 08 suburban ltz. I replaced the factory nav head unit with a pioneer avh1400nex. Now when I hook up the scanner it throws a bunch of codes for lost communication to the radio. Have the maestro and all harnesses to keep all factory options. But I clear the codes and they come back. Is there something that I am missing? Any help is appreciated.

Here is the report after radio install