ScottyBoy
No, that's not a banana in my pants.
Is the noise coming from the sub, door speakers or both? 


I haven't checked yet. Spent last weekend lowering my buddy's '11 5.0 Stang, changing shocks on another buddy's Golf and then Installing a sub and repairing body damage on another buddy's ride.
Now I'm on your coast.
Scotty, is it possible to have the noise, even when everything is wired correctly with high-quality wiring?
Is it ever possible to truly need an isolator as the only option?