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

PAC GM1A-RST RadioPRO Advanced GM Radio Replacement Interface with OnStar Retention

PACSKU: GM1A-RST
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.

Call 504-289-8127 Text 504-289-8127 Send Project Details
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-RST RadioPRO Advanced

GM1A-RST is the GM radio-replacement path for supported vehicles where chimes, steering-wheel controls, the factory amplifier and OnStar all need to stay in the system after the factory radio is removed.

That OnStar retention is the important distinction from GM1A-RS. The two should not be treated as price-step variants; the vehicle’s factory equipment decides which architecture belongs in the quote.

Where It Fits

Use GM1A-RST only where current PAC application data specifies this exact model. Confirm factory radio, Bose/non-Bose audio, OnStar, connector/data-bus generation and any required antenna/camera/USB adapters before quoting.

Manufacturer Specifications

  • Manufacturer: PAC
  • Model: GM1A-RST
  • Product family: RadioPRO Advanced
  • Type: GM radio replacement interface
  • Current PAC price: $399.00
  • Retained functions: Chimes, supported factory amplifier, steering-wheel controls and OnStar
  • Vehicle coverage: Select General Motors applications; exact PAC application required

Important: this is not interchangeable with GM1A-RS, GM3A-RSTX or GM6A-RST. Resolve the exact OEM radio/audio/network configuration first.