SterlingStangMan
Well-Known Member
- Joined
- Sep 9, 2015
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- 1
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- 552
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- Location
- Valley Center
- Vehicle(s)
- '19 Magnetic Ecoboost
Thanks for the info!
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I have an intermittent resonance, too, so I tried this last night. So far I haven't really noticed a difference.One other benefit of doing this is reduced harmonic resonance inside the car from aftermarket parts which the factory didn't account for.
I have a catless downpipe installed and between 2700-3200 rpm there was a very pronounced harmonic humming/vibration that would keep getting louder if the revs were kept in that range. It was on my list of things to address.
I disconnected the mic under the headliner just to see what it sounded like without it and remarkably the harmonic noise/vibration is gone. I mean completely gone. It was apparently picked up by the Active Noise Control, which wasn't tuned for such things, and amplified for whatever reason.
Engine still sounds meh, but that's not why I bought this car anyway.
Can someone get a picture of this?On the convertible the Active Noise Control mic is located in the map light panel. If you gently pull down the 'map light box' (near the rear-view mirror); look about 2 inches left of center for a black plastic 'box'. Its about the size of a postage stamp and about 3/8" thick. It'll have a simple and tiny positive/negative harness plug that is separated from the other wiring harnesses. Simply unplug, slip in back into place, and put the map light box back.
I would honestly go the software route instead of the hardware route. But that's just me. Forscan ftw!:dohoooohhh The fact that you don't have a convertible is the reason this question is not directed at you personally. Wes and I are asking other convertible owners to respond. "...ask uncle Google" is a bit condescending. Personally, I did and even went to the F150 Forum to see if there were answers there.
You are correct on ANC and fake engine sounds being separate, but let me explain the operation a little better...Active noise control is separate from the fake engine sound. So disabling the fake sound with forscan will only stop the fake sound and not disconnect the active noise cancellation. Pulling the rear mic keeps the active noise cancellation from Fighting the exhaust and aftermarket sub sounds from the rear of the car. The system still works fine with the rear mic disconnected and will not effect phone calls as there is still a front mic.