Audio Systems: Noise and static on radio, boes radio, overpass

Question
I have a Boes radio in a 1997 Cad. Eld., always played well. Recent noises and some static when passing under wires and any overpass. Tuner boards were replaced, still getting noise, was told antenna is okay. What could be causeing the pick up of noises. Help and Thanks.

Answer
All I can say to that is that you should be happy that it worked for 10 years. I wouldn't spend a dime on it. If it gets so that you can't listen to it any more my recommendation is to replace it with something new. Bose doesn't even carry parts for it any more.