Well it's weird the way the noise comes, if you reread through a couple of my posts you would see, but yes it does get louder when the rpms increase(pretty sure any alt whine will). But the noise is'nt constant it's weird, soo today I will do work.
Is yours doing the same exact thing mine is? I've never heard of alternator whine just comming out of no where, it's someweird stuff.lol
I was thinking the same I will just run a ground to the batt and see if that's a fix. If not I will ground the rca's. It's raining here soo no glassing today, I guess I'll just do the fun stuff, troubleshooting.lol
I just hooked up an amp on my mids and highs and i'm getting the same thing. Does yours get louder as your rpm's get higher?