Thanks for the responses. The radio is all tubes and I have the factory ground straps from engine to cab and cab to frame, though I still lack one from the radiator support to frame. the antenna is new and I'm pretty sure the ground is good, but I'll recheck it. I don't have an alternator, I guess those parts mentioned would apply to a generator equipped truck as well? The noise it makes does have a whine to it, but does have some ignition noise as well. By the way, what is a foggy control? Thanks, Bill.