PAC RadioPRO5 RP5-GM51 Radio Replacement Interface for Select Buick, Cadillac, Chevrolet & GMC Vehicles

The PAC RadioPRO5 RP5-GM51 Radio Replacement Interface for Select Buick, Cadillac, Chevrolet & GMC Vehicles is a vehicle-specific interface for installing an aftermarket radio while retaining the supported factory features listed by PAC. It combines the required data-bus connections with application-dependent steering-wheel-control, amplifier, chime, camera, accessory-power, and navigation-output functions.

At a Glance

• Vehicle-specific radio-replacement interface for the exact applications listed below
• Connects an aftermarket radio while retaining supported factory convenience and audio features
• Provides application-dependent accessory power and navigation outputs
• Factory features, required accessories, and limitations vary by vehicle and radio configuration
• Retains OnStar Telematics system
• Retains original steering wheel control functions with the radio with no additional interface or programming needed
• Retains front and rear park assist
• Retains all warning chimes (chime module included)
• Retains OEM Auxiliary Input
• Antenna adapter included
• Additional part CAM-GM51 required to retain factory reverse camera
• Data controlled outputs for connection to your navigation radio; speed, reverse, and parking brake status output wires
• Data controlled RAP accessory output
• Works right out of the box with most radio brands

Exact Vehicle Compatibility

Find your vehicle below and match the model year, trim, factory radio, amplifier, screen, and equipment details shown in the same row. If your vehicle or factory configuration is not listed, contact MCOR before ordering.

Compatibility & What You Need

• Required interface: PAC RP5-GM51. This part number must match the application exactly.
• Aftermarket radio: Sold separately. Confirm that it has the inputs and outputs required for every factory feature you want to retain.
• Application accessories: Camera, USB, satellite-radio, rear-seat-entertainment, antenna, steering-wheel-control, or firmware accessories may be required where stated in the table or current PAC guide.
• Programming: Use the current PAC firmware and follow the current product instructions before final testing.
• Professional installation is strongly recommended for data-bus radio replacement.

Important Application Notes

• Factory rear-seat entertainment, Wi-Fi, Teen Driver, Valet Mode, camera guidelines, front camera, ambient-lighting controls, and several performance/cluster displays are not retained.
• Impala, Malibu, and Corvette installations must follow the PAC model-specific technical brief.
• Factory backup-camera retention requires the separately sold CAM-GM51 where specified by PAC.

Technical Specifications

Manufacturer Resources

• RP5-GM51 Instruction Manual
• Download (808.46k)
• Download (3.24M)
• Download (250.81k)
• Download (1.03M)
• Download (1.63M)

What's Included

• One genuine PAC RP5-GM51 interface package
• Manufacturer-supplied harnesses, modules, and connection leads shown for this exact part number

Sold separately: aftermarket radio, dash kit, antenna adapter, camera/USB/retention accessories, and installation materials unless expressly shown and 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