Ok ran the radio in the car tonight on ACC while not running. Let the radio run for about 40 minutes and had no issues at all. Then went for a short ride with my son, maybe 15-20 minutes without issue. It in the past it seems like it has to run for about 30 minutes to give any trouble in the radio. I will say that once it happens if you continue to let it play it will continue to happen fairly frequent. If you turn the radio off for a while, say 5 minutes it will take some time before it starts to pop again. So I really don’t know am at a loss. It may not be a fair comparison but the old AM radio would play basically none stop with no issue or pop sound.
I do appreciate all the help and advice, but I would just like to pin point this issue if possible just not sure exactly how. The thought about a diode or something shorting sort of makes since but I’m not sure. It just doesn’t seem to make a difference from the road or anything like that nature.
Matt