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Discussion Starter · #1 ·
I just put an aftermarket amp and sub in my eco and now at about 1500rpm I have this annoying hum coming through my sub. There has to be a way to disable it. I called my local ford dealer and they had no idea what I was talking about.
 

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I have the stock stereo system and I can hear that low RPM hum too. Drives me crazy. Try pulling fuse #27 and then going for a drive. Supposedly that fuse controls the ambient engine sounds. The F150 Ecoboost trucks can have this feature turned off by the dealer if you can believe that. It's done through the Sync system. They need to make it an option for the Mustangs too.


U.M.
 

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Pulling fuse 27 controls your audio. I could pull it but it would take my stereo with it.
Yes that is correct. Fuse 27 controls the amplifier. I wasn't sure how much of the stock system you were still using in your current setup.


The only other suggestion is to look at disabling the input microphone. Supposedly there is a mic located in the map light pod that can be disabled which stops the active noise system from working. However the mic is probably shared with the voice command system so who knows. May just be stuck with this crap.


U.M.
 

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Ok so today I took it in to ford to have them disable it and after 2 hours they gave up. Tried to use IDS but that didn't work. HOWEVER.....after a bit more research online I discovered that there is a small mic located in the headliner just above the back seat. Pull your headliner back and unplug that mic and the noise is completely gone! Problem solved!
 

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Ok so today I took it in to ford to have them disable it and after 2 hours they gave up. Tried to use IDS but that didn't work. HOWEVER.....after a bit more research online I discovered that there is a small mic located in the headliner just above the back seat. Pull your headliner back and unplug that mic and the noise is completely gone! Problem solved!
SWEET! Awesome info Swperry. I had read there was a mic in the car that is used to control the active noise control, didn't know if it was separate from the blue-tooth or not. Sounds like it is. Great!


U.M.
 

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I just had to join up to this forum, as I just purchased a 2015 Ecoboost Convertible last week.

Any idea where that microphone is on the convertible edition? Can't seem to find anything on the interwebs as to where it would be.
 

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I have the same situation. Where is the mic on the convertible? Anyone?
It's in the map lights box. I'm not 100% sure where it is located in there, as the audio guy that installed my amp is the one who found it and pulled it out. It's a small squarish black mic box. My sub now works perfectly, and the mic could easily be put back in if I ever got rid of the stang.

If you need a pic of it, let me know. I can possibly pull the box down and see where the mic came from if you need it. Honestly dont even notice a difference in engine sound without.
 

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Once you disconnect the mic in the rear headliner, you will still get some engine noise if you use higher powered amps. the noise is limited to the rear speakers, and can be minimized, but not completely eliminated by using a pair of bass blockers to the rear speakers. 100 microfared capacitors work the best.
 

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"Active Noise Control" mic in a convertible

I have the same situation. Where is the mic on the convertible? Anyone?
Picked up a 2016 Ecoboost Premium Convertible with the Shaker 500 system. Sounded....umm, well, bad. Desperately needed some upgraded bass......at a minimum. There weren't many affordable plug-in-play options for the '16 Convert, so I went another direction. I added a pair of 10" Pioneer subs (TSW261S4 firing up) to an off-the-shelf $40 prefab box designed for Jeeps (Amazon). Then added 2-farad cap, Fosgate Prime (R500X1D) amp, an LOC from the passenger rear speaker and sure enough; I had that engine rumble coming through the 10s. Is was really bad/obnoxious from about 900 RPM to about 1900 RPM.

After reading this forum; I found the "Active Noise Control" mic in the map light panel and simply unplugged it. A few seconds of testing with it unplugged and no engine rumbling through the subs. A quick re-connect brought back the rumble. FOUND IT!

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.

Thanks to the forum for the help and byw, this upgrade really fixed the short-comings of the Shaker 500 system.

Vegas Don
 

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Great info on the mic location on the 'vert. We were wondering where Ford relocated it on the drop top models, now we know. Thanks again for the information. It will be valuable for others. :cool:

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Ok so today I took it in to ford to have them disable it and after 2 hours they gave up. Tried to use IDS but that didn't work. HOWEVER.....after a bit more research online I discovered that there is a small mic located in the headliner just above the back seat. Pull your headliner back and unplug that mic and the noise is completely gone! Problem solved!
I can see the mic on the headliner. I tried to pull it down but it is impossible, as there are plastic panels on each side of the headliner that seem to help keep it in place. Any suggestions, photos or even a short video would be helpful.
 

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I can see the mic on the headliner. I tried to pull it down but it is impossible, as there are plastic panels on each side of the headliner that seem to help keep it in place. Any suggestions, photos or even a short video would be helpful.
I second this motion! I've yet to yank mine out and a short tutorial or picture may make it a bit easier. Anyone willing to help? :D

U.M.
 
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I second this motion! I've yet to yank mine out and a short tutorial or picture may make it a bit easier. Anyone willing to help? :D

U.M.
OK, I found two videos that show exactly how to disable the active noise control, but I cannot post them here because it seems that I do not have enough posts in this forum... :(

Send me your email and I can send them to you if you want.

I did it already.

Here is the process and my advice: be gentle. Carefully insert one hand under the center of the headliner and start moving towards one end. If you look carefully you will see that there is a strong magnet and a clip that keep the headliner attached to the roof. Lift your fingers and push the headliner down. Insert your other hand on the other side and do the same. Do not pull aggressively the headliner down at the center as you might destroy it. You will see the mic - simply unplug it. That's it!

Tip: For those who have loud exhausts, this will help reduce the drone. Also, disabling the active noise control will improve the sound that comes out of the car stereo. ;)
 

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I created a thread at the mustang6g forum so that you can see the videos. Go to the forums and look for the thread at Technical Subforums > I4 2.3L EcoBoost Engine / Mods: Bolt-ons, Exhaust, Tuning Reload this Page > How to disable the Active Noise Control
 

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