I pulled my 1989 300SE off the road for about 2 years. Battery died etc... Radio was working fine. I had work done on the car & it is now back in service. Scan does not stop on any stations, but I do get some static on am stations but not a peep on FM. I did replace the antenna a while back and if I touch the antenna the sound of the static changes so I am assuming there is connectivity. Any ideas?