PAC - GM1A-RS - ***Serialized*** RadioPRO Advanced Radio installation Adapter for GM Class-2 Vehicles. Retains Chimes Steering wheel controls and factory

PAC – GM1A-RS (Serialized)

RadioPRO Advanced Radio Installation Adapter
For GM Class-2 Data Vehicles
Retains OEM Chimes, Factory Amplified Systems & Steering Wheel Controls

DESCRIPTION

• OEM integration interface for installing an aftermarket radio into GM vehicles using Class-2 data networks.

• Retains factory amplified audio systems (including Bose® where applicable).

• Maintains OEM safety and system chimes and steering wheel audio controls.

• Serialized hardware version ensures correct communication behavior with multiple vehicle model years and trim software revisions.

FEATURES

• Retains:

  • Steering wheel audio controls (volume, track, mode — varies by radio brand mapping)

  • Factory amplifier turn-on and audio routing (Bose® / Premium / Base)

  • OEM warning chimes (key, seatbelt, door, turn signal, etc.)

  • OnStar® audio integration (vehicle dependent)

• Provides:

  • 12V accessory output for aftermarket radio power-on

  • Illumination and amp remote turn-on outputs (system dependent)

• Supports installation of single-DIN and double-DIN aftermarket radio chassis.

FUNCTIONAL APPLICATIONS

• Replace factory radio while maintaining:

  • Full vehicle communication integrity

  • Audio control behavior

  • Safety sound cues

• Used when upgrading to:

  • Touchscreen multimedia receivers

  • CarPlay / Android Auto head units

  • Marine-grade or mechless receivers for motorcycle/UTV conversions

SPECIFICATIONS

• Vehicle Bus Type: GM Class-2

• Audio Compatibility:

  • Factory amplified systems, including Bose®

  • Non-amplified factory systems

• Outputs Provided:

  • ACC 12V turn-on

  • Amp turn-on output

  • Ground

  • Illumination (varies by application)

• SWC Integration:

  • Built-in steering wheel control translation module

  • Radio brand selection performed during setup

INSTALLATION NOTES

• Installs behind the aftermarket radio.

• No cutting or splicing of OEM harness.

• Steering wheel control retention requires selecting the radio brand mode during initial setup.

• If replacing a Bose® system amplifier, additional signal routing equipment may be required (not included).

FITMENT

• Designed for GM vehicles equipped with Class-2 data communication.

• Common supported platforms include (model/year dependent):

  • Chevrolet: Silverado, Tahoe, Suburban, TrailBlazer, Malibu

  • GMC: Sierra, Yukon, Envoy

  • Buick: LeSabre, Rendezvous

  • Pontiac: Grand Prix, Bonneville

  • Cadillac: Select Class-2 equipped models

• Fitment is verified by radio connector style + Class-2 network, not trim package alone.

INCLUDES

• GM1A-RS (Serialized) Interface Module

• Vehicle-specific radio wiring harness

• Built-in Steering Wheel Control retention module

• Chime retention circuitry

• Setup / configuration guide