PAC RP5-GM31 Radio Replacement Interface with Built-In OnStar and Steering Wheel Retention for Select GM LAN Vehicles, Blue

Upgrading a GM vehicle radio often means choosing between a fresh look and essential features. The PAC RP5-GM31 is a compact blue interface designed to sit between the factory harness and a new radio. It aims to preserve key OEM functions while you modernize the cockpit, so you can focus on the drive rather than setup. This module integrates smoothly with select GM LAN vehicles to maintain familiar controls and services after a head unit replacement.

Key capabilities you may rely on

• Radio replacement interface with built-in OnStar retention
• Steering wheel control retention to keep volume, track, and call controls intact
• Navigation outputs to connect with OEM style navigation features where available
• Reverse wire output to support camera or related rear visibility needs
• Dual zone function for separate media and climate or comfort settings
• Illumination output to match dash lighting with the new radio
• Parking brake output to align safety related signals with the new setup
• Retains factory Bluetooth in 2009 and newer models for hands free use
• Maintains rear seat audio controls for shared cabin experiences

These capabilities are designed to work with select GM LAN vehicles. By keeping OnStar and Bluetooth active in eligible models, you may continue to access stored settings and hands free features as you upgrade the head unit. The dual zone function and illumination output help the new radio feel integrated rather than installed ad hoc, while the reverse wire output offers additional integration options for rear visibility equipment.

Why this interface can be helpful in real life

• During a trim update, preserve familiar wheel controls so daily driving remains intuitive
• Keep OnStar readiness highlighted by the new radio interface, reducing the sense of loss after replacement
• Maintain rear seat audio controls for passengers who enjoy shared listening experiences
• Enable OEM style navigation outputs to preserve a cohesive in-car information system
• Leverage the illumination and safety oriented outputs to match the vehicle interior and safety workflow

Compatibility and physical profile

• For select GM LAN vehicles
• Optimized for 2009 and newer models to retain OnStar and factory Bluetooth
• Includes a reverse wire output for camera integration and other features
• Dual zone function supports complex vehicle setups

Physical footprint is a compact blue module with dimensions around 8.60 inches by 8.50 inches by 2.10 inches. The design prioritizes a slim, unobtrusive installation that can fit behind or beside a new radio while preserving key vehicle features.