Not the famous American Motors auto, but the nagging crackling sound out of my studio reference monitors. After spending a small "king's ransom" on my new reference monitors for my DAW (Digital Audio Workstation), I was plagued with a nagging crackling noise, even when not putting any signal through. Then I thought it through - common, ex-I.T. guy! It was the über-powerful WiFi modem. it was way too close and the onboard bi-amplifiers where getting some RFI. The relocating part was easy, but the physical was exhausting as I am still in shoulder recovery. It's amazing what you end up doing to adapt while in recovery. Oh, and the setup is quiet as a church mouse now.