Ignitions and Electrical› Wiring Harnesses

Metra Electronics

FITS GM ANC BYPASS HARNESS FOR RPO

$45.48

SKU: M01F ANC-GMH4

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Metra ANC-GMH4 is an ANC bypass harness designed for select 2020 Chevrolet and GMC vehicles. This harness ensures smooth speaker and subwoofer upgrades in non-amplified GM vehicles with ANC audio systems. It maintains proper communication between audio equipment and the ANC system, preventing sound distortion and interference.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMetra Electronics
Part NumberM01F ANC-GMH4

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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