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PAC
PAC RadioPRO Advanced GM1A-R Radio Replacement Interface for Select Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab & Saturn Vehicles
PAC RadioPRO Advanced GM1A-R Radio Replacement Interface for Select Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab & Saturn Vehicles
Regular price
$249.00 USD
Regular price
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$249.00 USD
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The PAC RadioPRO Advanced GM1A-R 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 warning chimes through the built-in speaker
- Retains supported standard and premium Bose amplifiers
- Provides an SWI-DIRECT connection for a separately sold PAC steering-wheel-control interface
- Compact, USB-updatable interface with navigation-output connections
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 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Buick | Lacrosse | 2005-2007 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Buick | Rainier | 2004-2007 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Buick | Rendezvous | 2003-2007 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Buick | Terraza | 2005-2007 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Cadillac | Escalade | 2003-2006 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Cadillac | Escalade Esv | 2003-2006 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Cadillac | Escalade Ext | 2003-2006 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Avalanche | 2003-2006 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Cavalier | 2000-2005 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Colorado | 2004-2012 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Corvette | 2005-2013 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Express Van | 2004-2007 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Impala | 2000-2005 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Malibu | 2001-2003 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Monte Carlo | 2000-2005 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | S-10 Pickup | 2003-2004 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Silverado | 2003-2006 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Silverado | 2007 | Classic model, Without OnStar, Without Steering Wheel Controls | New model, With OnStar, With Steering Wheel Controls |
| Chevrolet | Ssr | 2003-2006 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Suburban | 2003-2006 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Tahoe | 2003-2006 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Trailblazer | 2002-2009 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Uplander | 2005-2008 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Chevrolet | Venture | 2003-2005 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| GMC | Canyon | 2004-2011 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| GMC | Envoy | 2002-2009 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| GMC | Savana | 2003-2007 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| GMC | Sierra | 2003-2006 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| GMC | Sierra | 2007 | Classic model, Without OnStar, Without Steering Wheel Controls | New model, With OnStar, With Steering Wheel Controls |
| GMC | Yukon | 2003-2006 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| GMC | Yukon Xl | 2003-2006 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Hummer | H2 | 2003-2007 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Hummer | H3 | 2005-2010 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Hummer | H3T | 2009-2010 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Isuzu | Ascender | 2003-2008 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Oldsmobile | Alero | 2001-2004 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Oldsmobile | Bravada | 2002-2004 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Oldsmobile | Silhouette | 2000-2004 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Pontiac | Aztek | 2001-2005 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Pontiac | Grand Am | 2001-2005 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Pontiac | Grand Prix | 2004-2008 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Pontiac | Montana | 2000-2006 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Pontiac | Sunfire | 2000-2005 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Saab | 9-7X | 2005-2008 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
| Saturn | Relay | 2005-2007 | Without OnStar, Without Steering Wheel Controls | With OnStar, With Steering Wheel Controls |
Compatibility & What You Need
- Main part: PAC GM1A-R. 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 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
- OnStar and factory steering-wheel controls are not retained by this interface alone.
- Choose GM1A-RX when an external chime speaker and adjustable audio fade are preferred, or GM1A-RS when integrated steering-wheel-control retention is required.
Technical Specifications
| Brand | PAC |
| Manufacturer Part Number | GM1A-R |
| Product Family | RadioPRO Advanced |
| Product Type | Vehicle-specific radio-replacement interface |
| UPC | 609098826976 |
Manufacturer Resources
What's Included
- One genuine PAC GM1A-R 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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