Please do not use the panel.cfg after updating to SU10 until I have updated it, otherwise the Garmin instruments and the weather radar will all be switched off without being able to switch them on and use them. Please do not use this mod until I have updated it for the new SU10 sim update.
Here is the same weather radar fix I made for the Piper Seneca V also available for the Carenado Cessna 337 Skymaster.
Put the new panel config into your installation folder, mine for example is:
E:\Flight Simulator\Flight Sim Install Files\Official\OneStore\carenado-aircraft-c337-skymaster\SimObjects\Airplanes\Carenado_C337_Skymaster\panel\panel.cfg