Usually the whine that changes pitch with rpm's has to do with a faulty ground somewhere in the system.
Usually the whine that changes pitch with rpm's has to do with a faulty ground somewhere in the system.One thing I noticed and I was wondering if anyone else is having this problem. I'm getting interference coming through the speakers. It's a high pitched whine and gets higher and more frequent when the RPM's on my truck go up. Any ideas on what this is or how it can be fixed.
Thanks