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PAC
PAC RadioPRO Advanced GM1A-RT Radio Replacement Interface for Select Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab & Saturn Vehicles
PAC RadioPRO Advanced GM1A-RT Radio Replacement Interface for Select Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab & Saturn Vehicles
Regular price
$349.00 USD
Regular price
Sale price
$349.00 USD
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The PAC RadioPRO Advanced GM1A-RT Radio Replacement Interface for Select Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab & Saturn Vehicles is a vehicle-specific data-bus interface for installing an aftermarket radio while retaining the supported factory audio, steering-wheel-control, chime, telematics, and convenience functions identified by PAC.
At a Glance
- Retains OnStar and warning chimes
- Retains supported standard and premium Bose amplifiers
- Supports premium-Bose gain and tone adjustment plus real-time audio fade
- Retains supported rear-seat entertainment and is USB updatable
Exact Vehicle Compatibility
Choose the row that matches your vehicle and factory equipment. The “Compatible When” column identifies required factory features; the “Not Compatible When” column shows configurations that need a different interface or are excluded.
| Make | Model | Years | Compatible When | Not Compatible When |
|---|---|---|---|---|
| Buick | Century | 2004-2005 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Buick | Lacrosse | 2005-2007 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Buick | Rainier | 2004-2007 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Buick | Rendezvous | 2003-2007 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Buick | Terraza | 2005-2007 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Cadillac | Escalade | 2003-2006 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Cadillac | Escalade Esv | 2003-2006 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Cadillac | Escalade Ext | 2003-2006 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Avalanche | 2003-2006 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Cavalier | 2000-2005 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Colorado | 2004-2012 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Corvette | 2005-2013 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Express Van | 2004-2007 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Impala | 2000-2005 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Malibu | 2001-2003 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Monte Carlo | 2000-2005 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | S-10 Pickup | 2003-2004 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Silverado | 2003-2006 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Silverado | 2007 | Classic model, With OnStar, Without Steering Wheel Controls | New model, With Steering Wheel Controls, Without OnStar |
| Chevrolet | Ssr | 2003-2006 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Suburban | 2003-2006 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Tahoe | 2003-2006 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Trailblazer | 2002-2009 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Uplander | 2005-2008 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Chevrolet | Venture | 2003-2005 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| GMC | Canyon | 2004-2011 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| GMC | Envoy | 2002-2009 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| GMC | Savana | 2003-2007 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| GMC | Sierra | 2003-2006 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| GMC | Sierra | 2007 | Classic model, With OnStar, Without Steering Wheel Controls | New model, With Steering Wheel Controls, Without OnStar |
| GMC | Yukon | 2003-2006 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| GMC | Yukon Xl | 2003-2006 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Hummer | H2 | 2003-2007 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Hummer | H3 | 2005-2010 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Hummer | H3T | 2009-2010 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Isuzu | Ascender | 2003-2008 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Oldsmobile | Alero | 2001-2004 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Oldsmobile | Bravada | 2002-2004 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Oldsmobile | Silhouette | 2000-2004 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Pontiac | Aztek | 2001-2005 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Pontiac | Grand Am | 2001-2005 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Pontiac | Grand Prix | 2004-2008 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Pontiac | Montana | 2000-2006 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Pontiac | Sunfire | 2000-2005 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Saab | 9-7X | 2005-2008 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
| Saturn | Relay | 2005-2007 | With OnStar, Without Steering Wheel Controls | With Steering Wheel Controls, Without OnStar |
Compatibility & What You Need
- Main part: PAC GM1A-RT. The part number and factory-equipment requirements must match the application exactly.
- Application-dependent accessory: PAC SWI-CP2 may be required or useful where stated in the vehicle notes or current PAC instructions.
- Application-dependent accessory: PAC GMRVD may be required or useful where stated in the vehicle notes or current PAC instructions.
- Application-dependent accessory: PAC VS41 may be required or useful where stated in the vehicle notes or current PAC instructions.
- Aftermarket radio: Sold separately. Confirm it has every input and output required for the factory features you want to retain.
- Professional installation is strongly recommended for data-bus radio replacement and factory-amplifier integration.
Important Application Notes
- Factory steering-wheel controls are not retained by this interface alone.
- A separately sold compatible PAC steering-wheel-control interface is required when steering-wheel audio controls must remain available.
Technical Specifications
| Brand | PAC |
| Manufacturer Part Number | GM1A-RT |
| Product Family | RadioPRO Advanced |
| Product Type | Vehicle-specific radio-replacement interface |
| UPC | 609098826952 |
Manufacturer Resources
What's Included
- One genuine PAC GM1A-RT product package
- Manufacturer-supplied module, harnesses, and connection leads shown for this exact part number
Sold separately: aftermarket radio, dash kit, antenna/camera/USB adapters, optional retention modules, and installation materials unless expressly identified as included.
Fitment disclaimer: Compatibility is not determined by year and model alone. Verify the exact factory radio, screen, amplifier, audio package, connector, vehicle options, firmware, and every required accessory before ordering. Product photos show the listed PAC package; surrounding installation equipment is not included. Contact MCOR Automotive through the chat button for application help.
Why Buy From MCOR Automotive
- Authorized PAC retailer with manufacturer-backed warranty support
- Vehicle-specific compatibility help before purchase
- Professional car-audio integration and installation support
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