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Car Audio
PAC  |  SKU: GM1A-RT
$90.00 off

PAC GM1A-RT — Serialized*** RadioPRO Advanced Radio installation Adapter for GM Class 2 vehicles. Retains Chimes OnStar and factory

Sale price $259.00 Regular price $349.00
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Key features

  • RadioPRO Advanced replacement-radio adapter for GM Class II applications
  • Retains compatible OnStar and factory-amplified systems
  • Warning-chime speaker included
  • USB connection for firmware updates and setting adjustments
  • Adjustable chime and factory-amplifier gain settings


Description

Product Overview

Keep key factory functions connected when installing an aftermarket radio in a GM Class 2 vehicle with the PAC GM1A-RT RadioPRO Advanced radio installation adapter. It retains features including chimes, OnStar, steering wheel controls, factory amplified systems, and safety notifications.

Key Features & Benefits

  • Factory feature retention: Keeps supported vehicle functions such as audio fade and rear-seat entertainment integrated with the installation.
  • Chime speaker included: A provided speaker delivers the adapter’s warning chimes.
  • Direct USB connection: Lets you adjust product settings and update firmware through a direct connection.
  • Streamlined harness design: Helps make the installation process more efficient.
  • Smaller housing: Takes up less space than the design it improves upon.
  • Accessible adjustments: Makes chime and factory amplifier gain adjustments easier.

Technical Specifications

Brand PAC
Model GM1A-RT
Product type Radio installation adapter
Vehicle application GM Class 2 vehicles
Retained features Chimes, OnStar, factory amplified systems, steering wheel controls, audio fade, rear-seat entertainment system, and safety notifications
Connections and adjustments Direct USB connection for product setting adjustments and firmware updates; chime and factory amplifier gain adjustments
Included item Speaker for warning chimes

Why Choose This Product?

The GM1A-RT is designed to help integrate an aftermarket radio with a GM vehicle’s data-bus system while retaining supported factory features. Its updated harness layout, smaller housing, and easier adjustment access address practical installation and setup needs.

Installation & Compatibility Notes

This adapter is described for GM Class 2 vehicles. Confirm your vehicle’s application and the factory features you need to retain before choosing an adapter. The provided speaker is used for warning chimes; the direct USB connection supports setting adjustments and firmware updates.

Frequently Asked Questions

What vehicle application is the PAC GM1A-RT for?

It is intended for GM Class 2 vehicles.

Which factory features can it retain?

Listed features include chimes, OnStar, steering wheel controls, factory amplified systems, audio fade, rear-seat entertainment, and safety notifications.

Does the adapter include a speaker for warning chimes?

Yes. A speaker is provided for the warning chimes.

How do I adjust settings or update firmware?

The adapter has a direct USB connection for product setting adjustments and firmware updates.

Can I adjust the chimes and factory amplifier gain?

The design provides easier adjustment of chimes and factory amplifier gain.

Explore More

Shop PAC products at 12 Volt Outlet. Want to learn more about PAC? Explore our PAC brand profile.