12” nav - Active Noise Cancellation(ANC) tick/feedback

[My1stHemi]

I have mentioned this in another thread but my ANC has an issue where I get an annoying feedback or ticking sound in my rear passenger overhead speaker. I don’t notice it from the drivers seat but when you sit in the back seat it is awful. I sometimes use my enormous back seat as a mobile office so this needs to get solved ASAP.

If the truck is running with the radio off there is a slight hiss sound emitted from both rear overhead speakers an no others at startup. After about 1 minute the ticking starts. It sounds like a stun gun The extension .MOV will not upload from my iPhone on this website.

This sound is emitted with the radio on or off.

 

[My1stHemi]

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[My1stHemi]

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Dealer had the truck in the shop today and is going to keep it for another as they have apparently elevated this issue to FCA. Stay tuned.

 

[My1stHemi]

Presto change-o. Dealer is going to swap the amp now rather than building a wiring harness. Hopefully have the truck by Saturday.

 

[My1stHemi]

Amp has been replaced, no clicking. I will report back if I run into any further issues.

 

[My1stHemi]

Well a week later and the sound has returned.

I truly think it is a stray signal being introduced on the charging system.

 

[Teddyherrera]

I just took mine in for this. i only get the feedback when the rear seat warmers are on though. i hope they can fix it without messing anything else up.

 

[Brain h]

I just took mine in for this. i only get the feedback when the rear seat warmers are on though. i hope they can fix it without messing anything else up.

Sounds like a grounding issue

 

[kurtdoten]

I just took mine in for this. i only get the feedback when the rear seat warmers are on though. i hope they can fix it without messing anything else up.

Any luck at the dealer with this issue? My kids have been complaining about a noise as well, but I can't hear it from the front. I'm going to have to check out the seat warmer issue myself.

 

[My1stHemi]

I just took mine in for this. i only get the feedback when the rear seat warmers are on though. i hope they can fix it without messing anything else up.

Interesting. I just tried this and it didn't work for me in my driveway with a cold truck but the sound always seems to happen for me at normal operating temp.

 

[Teddyherrera]

I find out tomorrow. Theyve had my truck for over a week and gave me a 2020 big horn 2500 as a loaner. I know now that despite this hiccup, i made the right choice with my limited. i cant wait to give it back...

 

[Teddyherrera]

just got my truck back today. The sound is gone but the stereo seems weaker, the front right channel is louder than the others. Is this a thing?

 

[Danny_TheHouseCook]

Sounds like a grounding issue

I agree with @Brain h, sounds like a loose or missing ground somewhere. They're really tough to hunt down.

 

[Teddyherrera]

Any luck at the dealer with this issue? My kids have been complaining about a noise as well, but I can't hear it from the front. I'm going to have to check out the seat warmer issue myself.

Yes. Turns out it was a bad wire in some harness. Took them a week to rewire. However they may have undone the anc amp update because bass is less and now I have a small crack on my rear window frame. Its going back. But that issue was fixed