C2R-GM29 - Pac (R) C2R-GM29 Radio Replacement Interface (29-Bit | Aztek Computers
29+Years
SKU: PF987DLRFP |  Mfg. Part: C2R-GM29  | UPC: 606523107020  | 
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C2R-GM29 - Pac (R) C2R-GM29 Radio Replacement Interface (29-Bit Interface for 2007 GM(R) vehicles with No OnStar(R) Syst

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Product Overview

The C2R-GM29 allows aftermarket radio installation without retention of the factory radio. The interface replicates all factory warning chimes, audible turn signal indicators and provides a data bus generated 12 volt accessory output that acts just as GM?s R.A.P. (Retained Accessory Power) system did prior to radio removal. R.A.P. keeps the radio powered after the key is off, until the driver door is opened or a 10 minute timer ends, whichever comes first. The C2R-GM29 also provides a SWC (Steering Wheel Control) output wire at the interface. By using this interface, the Parking Assist System will receive a ?healthy? system status and the Rear Seat Audio controls will also be available for use (if equipped).

Expert Overview

The PAC C2R-GM29 Radio Replacement Interface is designed for integrating an aftermarket radio into specific 2007 GM vehicles that utilize a 29-bit data bus and lack an OnStar system. This interface addresses common challenges associated with aftermarket radio installations by ensuring the retention of essential factory features. It replicates all factory warning chimes, including backup chimes, memory seats, and low fuel alerts, and provides a data bus-generated 12-volt accessory output that maintains the Retained Accessory Power (RAP) system. The RAP system keeps the radio powered after the key is off until a door is opened or a 10-minute timer expires. Additionally, the C2R-GM29 provides a Steering Wheel Control (SWC) output wire, maintains a healthy system status for the Parking Assist System, and ensures the continued functionality of Rear Seat Audio controls if equipped. This solution is suitable for IT professionals and installers seeking a reliable method to upgrade vehicle audio systems while preserving critical OEM functionalities.

Technical Specifications

? Replicates factory warning chimes & provides a databus-generated 12V accessory power output that is fully compatible with the GM(R) RAP system;? Keeps the radio powered after key-off;? Issues data commands that maintain a health system status to other vehicles systems;? Retains all warning chimes including backup chimes, memory seats, low fuel, door/hatch ajar & others;? Retains RAP system when key is turned off--radio stays on for approximately 10 min or until the door is opened;? Supplied wire harness to connect aftermarket stereo to factory speakers;? Will work in vehicle that has the factory Bose(R) amp removed or bypassed--custom wiring is required;? Buzzer is built into the interface;? For non-OnStar(R) 29-bit 2006-2007 Buick(R) Lucerne, 2007 Cadillac(R) DTS, Escalade & SRX, 2007 Chevrolet(R) Avalanche, Equinox, Silverado (nonclassic), Suburban & Tahoe, 2006-2007 Impala & Monte Carlo, 2007 GMC(R) Acadia, Denali, Sierra (nonclassic) & Yukon, 2007 Pontiac(R) Torrent & 2007 Saturn(R) Outlook;

Product Details

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  • PAC
  • C2R-GM29
  • B0014KRZ9O
  • 606523107020
  • New
  • 1 lbs
  • 4 X 5 X 4
  • Jul 28, 2026
  • Feb 06, 2015
Product Identifiers: Brand: Pac • Part #: C2R-GM29 • UPC: 606523107020 • ASIN: B0014KRZ9O • Category: Wire Brushes

Frequently Asked Questions

Which vehicles are compatible with the C2R-GM29 interface?

This interface is compatible with non-OnStar 29-bit 2006-2007 Buick Lucerne, 2007 Cadillac DTS, Escalade & SRX, 2007 Chevrolet Avalanche, Equinox, Silverado (nonclassic), Suburban & Tahoe, 2006-2007 Impala & Monte Carlo, 2007 GMC Acadia, Denali, Sierra (nonclassic) & Yukon, 2007 Pontiac Torrent & 2007 Saturn Outlook.

What factory features does this interface retain?

The C2R-GM29 retains factory warning chimes (including backup chimes, memory seats, low fuel, door/hatch ajar), the Retained Accessory Power (RAP) system, and ensures the Parking Assist System and Rear Seat Audio controls remain functional.

Is the C2R-GM29 compatible with vehicles that have a factory Bose amplifier?

Yes, this interface will work in vehicles where the factory Bose amplifier has been removed or bypassed. However, custom wiring is required for such installations.

Does the interface provide a 12V accessory power output?

Yes, the interface provides a databus-generated 12V accessory power output that is fully compatible with the GM RAP system, keeping the radio powered after key-off for approximately 10 minutes or until a door is opened.

C2R-GM29 - Pac (R) C2R-GM29 Radio Replacement Interface (29-Bit Interface for 2007 GM(R) vehicles with No OnStar(R) Syst

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$94.40