PAC - GM1A-RX - ***Serialized*** RadioPRO Advanced Radio installation Adapter for GM Class-2 Vehicles. Retains chimes Factory amplified

PAC – GM1A-RX (Serialized)

RadioPRO Advanced Radio Installation Adapter
For GM Class-2 Data Vehicles
Retains Factory Warning Chimes & Factory Amplified Audio Systems

DESCRIPTION

• Integration module designed to enable aftermarket radio installation in GM vehicles using Class-2 data bus networks.

• Retains factory amplified audio systems, including Bose® where equipped.

• Maintains all OEM warning/security chimes, ensuring system behaviors remain correct after radio replacement.

• Serialized hardware provides proper configuration and year-range compatibility.

FEATURES

• Retains:

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

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

  • Data-based ignition/ACC power from the Class-2 network

• Provides:

  • 12V accessory output for powering aftermarket radios

  • Amplifier remote turn-on

  • Illumination & ground connections (vehicle dependent)

• Compatible with:

  • Single-DIN and Double-DIN aftermarket multimedia receivers

FUNCTIONAL APPLICATIONS

• Replace factory radio while maintaining:

  • Audio system operation

  • Safety-related chime alerts

• Ideal for:

  • CarPlay / Android Auto touchscreen upgrades

  • Marine/mechless digital receivers

  • Full multimedia head unit upgrades for older GM platforms

SPECIFICATIONS

• Vehicle Network Type: GM Class-2

• Audio Compatibility:

  • Factory amplified systems, including Bose®

  • Standard/base systems (non-amplified)

• Outputs Provided:

  • ACC 12V turn-on

  • Amplifier turn-on

  • Ground & illumination (varies by model)

• Steering Wheel Controls:

  • Supported when paired with PAC SWI-series SWC interface (optional)

INSTALLATION NOTES

• Installs behind the new aftermarket radio using plug-in harnessing.

• No cutting of factory wiring required.

• When retaining Bose®, audio remains line-level through the factory amplifier unless re-amplifying or bypassing.

• For systems undergoing full amplifier replacement, RCA / LOC or DSP input configuration may be required.

FITMENT

• Designed for GM vehicles equipped with Class-2 network architecture, commonly found in (trim/year dependent):

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

  • GMC: Sierra, Yukon, Envoy

  • Buick: LeSabre, Rendezvous

  • Pontiac: Grand Prix, Bonneville

  • Cadillac: Select Class-2 equipped platforms

• Verify connector type + Class-2 network, not model name alone.

INCLUDES

• GM1A-RX (Serialized) Interface Module

• Vehicle radio wiring harness

• Built-in chime retention circuitry

• Installation / configuration guide