Seneca 2018.5 radio noise from alternator.
Hello. I purchased a new Seneca 2018.5 model last year and have noticed the radio has a high pitched noise that fluctuates with the RPMs of the vehicle. As the RPM get higher, the pitch gets higher. It is extremely annoying. In my high school days of my tinkering with stereos, we would have this problem if there was a bad ground to the system. It would send ambient noise back through the speakers from the alternator (I was told)? Has anyone else had this problem? Anyone had this fixed?
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