My AM radio has noise that sounds like ignition noise but definitely is related to the driving speed, and not the engine RPM.
What can I look at to determine where the problem is coming from? I thought maybe I could disconnect something and see if the noise goes away -- like the speedometer wire or the ABS sensors. I'm not sure what else might be the source.
Has anyone else had a similar problem that is not ignition or alternator noise?
Thanks, Jim