PAC GM1A-RS RadioPRO Advanced GM radio replacement interface
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PAC GM1A-RS RadioPRO Advanced GM radio replacement interface

PAC GM1A-RS RadioPRO Advanced GM Radio Replacement Interface

PACSKU: GM1A-RS
Authorized Dealer In-Store Only
Collections:Car Audio DSP, OEM Integration & Signal ControlPAC OEM Integration, AmpPRO & LocPRO

Select the exact model required for the vehicle. Pricing remains protected for in-store quoting.

Authorized dealer · In-store only

In-Store Only — We’ll Help You Get the Right One

This product is not available for online purchase or shipping. Call or text us and we’ll make sure you’re getting the right one—whether you’re picking it up over the counter or having SMS install it for you. All purchases are completed in-store at SMS Car Audio.

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RADIO / OEM FUNCTION FIT

Where this fits in the build

The source unit has to fit more than the dash opening. Steering-wheel controls, factory cameras, amplified audio, chimes, USB, vehicle settings and data integration can change the correct installation path.

Plan aroundConfirm dash fitment and the factory features that must remain.
Match itMatch the radio to phone, camera, audio and interface requirements.
Finish itUse the correct vehicle interface instead of sacrificing OEM functions unnecessarily.
CarPlay & Radio Installation Ask SMS About This Product

Description

PAC GM1A-RS RadioPRO Advanced

GM1A-RS is for supported General Motors radio replacements where the factory radio is tied into vehicle chimes, steering-wheel controls and a factory amplifier. Instead of bypassing those systems blindly, this interface keeps the supported factory functions in the new-radio installation path.

PAC currently lists GM1A-RS as retaining chimes, the factory amplifier and steering-wheel controls. Exact application, factory-radio architecture and required companion adapters still need to be resolved by vehicle.

Where It Fits

Use GM1A-RS only when current PAC vehicle data specifies this exact interface. It is not interchangeable with GM1A-RST, GM3A-RSTX or GM6A-RST: OnStar, GM LAN generation, connector architecture, Bose equipment and other retained features change the correct interface.

Manufacturer Specifications

  • Manufacturer: PAC
  • Model: GM1A-RS
  • Product family: RadioPRO Advanced
  • Type: GM radio replacement interface
  • Current PAC price: $349.00
  • Retained functions: Chimes, supported factory amplifier and steering-wheel controls
  • Vehicle coverage: Select General Motors applications; verify exact current PAC application before ordering

Important: do not choose this part from GM make/year alone. Factory radio, Bose/non-Bose system, OnStar requirement and data-bus generation determine the correct path.