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Welcome to our new Site We are adding some final touches. For T-harnesses and ANC bypass purchases visit T-harness.com. Thank you
Welcome to our new Site We are adding some final touches. For T-harnesses and ANC bypass purchases visit T-harness.com. Thank you
Text/Call (602) 320-7004 Email: Support@lljcustoms.com
What is ANC?

What is ANC?

The symptoms will only happen when the vehicle is in drive or reverse.

  • Feedback when the sub is playing
  • Thumping of rapid off beat rattling from the sub
  • Humming

ANC is not used in vehicles that are designed for offroad use. Microphones can be found in the headliner.

2021-Up GM ANC bypass Vehicles w/ IOU,UZ6 RPO Code

2021-Up GM ANC bypass Vehicles w/ IOU,UZ6 RPO Code

by LLJ Customs Car Audio Fabrication
$15.00 USD - $15.00 USD
$15.00 USD
$15.00 USD - $15.00 USD
$15.00 USD

While we finish up the new site

Our ANC harnesses are currently only available at T-harness.com (Click here)

FAQ

Is there another way to disable my ANC?

Yes there are a few other ways.

  1. Cut the wires at the factory amp. (absolutely not recommended)
  2. Prop the headliner and disconnect the ANC microphones (does not always work)
  3. Some vehicles have the ability to disable in the software. (this can turn back on by itself)
After about 20 minutes that I turned off my vehicle, my subs will start to make a loud rumble. Why? Is this ANC?

NO, this happens when the vehicles security system sends a signal to the radio or amplifier that triggers the LOC or amp on.

Using DC offset OR audio turn-on will fix the problem for you. This can happen with vehicles regardless of having ANC.

Where do I plug in this bypass?

There are 3 places you can and it depends on the vehicle manufacturer and equipment.

  • Factory radio
  • Factory amplifier
  • Factory ANC module

Our harnesses have a 'where to plug in at' section for each bypass harness.

Add subwoofer in minutes

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GM Bose Factory amplifier T-harness 2013-2024 R2R

LLJ Customs Car Audio Fabrication
$240.00 USD - $240.00 USD
$240.00 USD
$240.00 USD - $240.00 USD
$240.00 USD
Out of stock

The factory Bose T-harness design lets you add a subwoofer in minutes. Our plug and play Bose T-harnesses are guaranteed to deliver the signal you...

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$240.00 USD - $240.00 USD
$240.00 USD
$240.00 USD - $240.00 USD
$240.00 USD
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GM Chevy T-harness Black/Gray Connectors 2018-2024 (Non-Amplified) R2R

LLJ Customs Car Audio Fabrication
$240.00 USD - $240.00 USD
$240.00 USD
$240.00 USD - $240.00 USD
$240.00 USD
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Chevy Black/Gray T-Harness allows you to add any aftermarket subwoofer to the Chevy/GMC/Cadillac Audio  system in minutes. Using the Chevy/GMC ...

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$240.00 USD - $240.00 USD
$240.00 USD
$240.00 USD - $240.00 USD
$240.00 USD
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Chevy GMC subwoofer T-harness Aqua/Tan 2019-2024 (None amplified) R2R

LLJ Customs Car Audio Fabrication
$240.00 USD - $240.00 USD
$240.00 USD
$240.00 USD - $240.00 USD
$240.00 USD
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Chevy Aqua & Tan T-Harness allows you to add any aftermarket subwoofer to the Chevy/GMC/Cadillac Audio  system in minutes. Using the Chevy/...

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$240.00 USD - $240.00 USD
$240.00 USD
$240.00 USD - $240.00 USD
$240.00 USD
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Ford sync 3 T-harness (None amplified) R2R 2011-2020

LLJ Customs Car Audio Fabrication
$240.00 USD - $240.00 USD
$240.00 USD
$240.00 USD - $240.00 USD
$240.00 USD
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The Ford R2R T-Harness allows you to add any aftermarket subwoofer to the ford sync system in minutes. Using the Ford T-Harness with an LOC 2ch L...

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$240.00 USD - $240.00 USD
$240.00 USD
$240.00 USD - $240.00 USD
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GM/GMC T-harness with 8" or select 4" screen's (Without Bose) R2R 2014-2018

LLJ Customs Car Audio Fabrication
$240.00 USD - $240.00 USD
$240.00 USD
$240.00 USD - $240.00 USD
$240.00 USD
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The Chevy/GMC R2G T-Harness allows you to add any aftermarket subwoofer to the Chevy/GMC system in minutes. Using the Chevy/GMC T-Harness with an...

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$240.00 USD - $240.00 USD
$240.00 USD
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