2011 expedition king ranch. Original factory radio was replaced a few months ago due to a button not working. Now the new replacement seems to be repeating radio stations. At random it will just repeat what was just said. Like a record skipping back a track. Its only a few seconds back but its enough to notice. Has anyone else experienced this? The only explanation I can think of is that its receiving and playing an analog signal and then at some point it picks up the stations digital signal and automatically switches to it. Its scheduled for service next week but the service dept said they haven't heard of this issue before so I figured I'd do some of my own research first.