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Metra WM-GM29-SWC Aftermarket Radio Data Interface and Harness General Motors 06-up

Key item features

  • Accessory Power: Provides 12-volt 10-amp accessory power for aftermarket radios.
  • Feature Retention: Retains R.A.P. (retained accessory power), chimes, and steering wheel audio controls.
  • NAV Outputs: Offers navigation outputs including parking brake, reverse, and speed sense signals.
  • Compatibility: Suitable for non-amplified or analog amplified models of select Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac, and Saturn vehicles from 2006-up.
  • Audio Balance: Maintains balance and fade functions for optimal audio experience.
  • Easy Installation: Simple to install with all necessary hardware included.
  • USB Updatable: Features Micro B USB port for updates, ensuring long-term compatibility.
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Current price is $81.26
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Customer ratings & reviews

3.7 out of 5 stars
stars45 ratings22 reviews
How item rating is calculated
  1. 5 stars58% (26)
  2. 4 stars11% (5)
  3. 3 stars2% (1)
  4. 2 stars0% (0)
  5. 1 star29% (13)

Reviews summary

Pros

  • : Installation takes minimal time and effort.
  • : Instructions are easy to read and thorough.
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Showing 1-3 of 22 reviews

Apr 22, 2025
israel
5 out of 5 stars review

Verified Purchase

this bypass module will provide and retain 12-volt accessory power, provide navigation outputs, retain chimes, retain steering wheel controls. super easy to install very clean have your aftermarket radio done in minutes

Incentivized Review
Helpful?60X3OKHAXLEW194556663
Apr 8, 2025
Stacy
5 out of 5 stars review

Verified Purchase

it was easy to install very satisfied

Incentivized Review
Helpful?60X3OKHAXLEW194556663
Apr 10, 2025
steven
5 out of 5 stars review

Verified Purchase

came with everything

plug and play

Incentivized Review
Helpful?60X3OKHAXLEW194556663