Good point, John. That will be my next step when I have a moment. Something has changed about the conditions in the truck and/or radio, as the system worked fine for 1+ years before this. Also, my D710a works fine on the same power supply in the truck. Obviously a different radio altogether, but a data point nonetheless.
> No, you can't say that until you also take the radio from the house and run > it in the truck for a while and experience the same problem. The conditions > are not the same as you point out in your next paragraph...
