PAC RadioPRO5 RP5-GM11 radio replacement interface for 2000–2013 GM vehicles — retains OnStar, steering wheel controls & Bose amp

If you’re swapping out a factory radio in a Buick, Chevrolet, GMC, Cadillac, Hummer, Saab, Pontiac, Oldsmobile or Saturn from the model years covered, this PAC module simplifies the installation and keeps many original features working. The RP5-GM11 bridges the car’s OEM databus to your new head unit so you don’t lose OnStar functionality, steering wheel button control, or Bose amplifier operation.

How does the RP5-GM11 keep OnStar and OEM features working?

The module intercepts the vehicle databus signals and replicates the needed outputs so OnStar voice services remain available after radio removal. It also preserves multiple factory systems and warning chimes so the car continues to behave as expected.

• Retains OnStar voice functions (does not retain OnStar text messages).
• Maintains OEM warning chimes and adjustable volume.
• Preserves reverse camera trigger, park assist and backup sensor signals.
• Provides retained accessory power (RAP), illumination and parking brake outputs.

Will my steering wheel controls and Bose amp still work with an aftermarket stereo?

Yes — the RP5-GM11 comes preloaded with steering wheel control (SWC) compatibility so common button functions map to your new radio without extra programming. It also supports factory Bose amplified systems so audio output remains correct when replacing the head unit.

• Pre-configured SWC software for direct install and button mapping.
• Works with both non-amplified and factory Bose amplified audio systems.
• Includes antenna adapter for proper radio reception integration.

What vehicle signals and outputs does this interface provide?

The interface exposes essential signals that most aftermarket radios require to integrate cleanly with vehicle systems. It supplies both analog triggers and a clean optional digital TOSLINK output for higher-end audio setups.

• Vehicle speed sensor (VSS) and reverse trigger for navigation and parking features.
• Illumination and parking brake trigger outputs for stereo display behavior.
• Optional TOSLINK digital output (requires APA-TOS1 adapter sold separately).
• USB-updatable firmware for future compatibility improvements (PAC-UP required separately).

Which GM models and years are compatible with this PAC interface?

The RP5-GM11 supports a broad list of GM-platform vehicles from roughly 2000–2013. Before ordering, verify the exact model and year against the application list to ensure compatibility with your vehicle’s audio architecture.

• Includes popular models like Chevrolet Silverado, Tahoe, Suburban, Corvette, TrailBlazer, and Colorado.
• Covers Cadillac Escalade (03–06), Buick Lacrosse (05–07), Hummer H2/H3, Pontiac Grand Prix, Saab 9-7X and many others.
• Compatible with both amplified and non-amplified OEM systems; review vehicle fit list before purchase.

Who is this for: The PAC RadioPRO5 RP5-GM11 is designed for DIY installers and professional shops upgrading factory radios in supported GM-platform vehicles who want to keep OnStar voice features, steering wheel controls, factory Bose amplification and key vehicle signals. It’s ideal for owners seeking a clean, plug-and-play solution that preserves OEM behavior while enabling modern aftermarket head unit features.