PAC RP3-GM12 — RADIO PRO3 CLASS II CHIME RETENTION MODULE W/10A ACCESSORY EQUINOX
Key features
- RadioPRO 3 interface for compatible GM Class II vehicles
- 24-pin harness application
- Retains compatible factory amplifier and retained-accessory power
- VSS, reverse and parking-brake navigation outputs
- Adjustable warning-chime volume
- Connection for a separate SWI-RC, SWI-RC-1 or SWI-CP2 control interface
PAC RP3-GM12 — RADIO PRO3 CLASS II CHIME RETENTION MODULE W/10A ACCESSORY EQUINOX is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Keep key factory functions when replacing a radio in a compatible GM vehicle with the PAC RP3-GM12 radio replacement interface. It supports Class II data-bus vehicles with a 24-pin harness and retains the factory amplifier, if equipped.
Key Features & Benefits
- 10A accessory output: Provides a high-current accessory output for the replacement radio installation.
- Retained vehicle signals: Data-controlled outputs provide speed, reverse, and E-brake status for a navigation radio.
- Factory chime control: Choose from four chime volume levels or turn the chime off.
- RAP accessory output: Data control supports the vehicle’s retained accessory power output.
- Steering-wheel control connection: A plug-in connection supports compatible SWI-RC, SWI-RC-1, or SWI-CP2 modules.
Technical Specifications
| Model | PAC RP3-GM12 |
|---|---|
| Product type | Radio replacement interface |
| Vehicle data bus | Class II |
| Harness | 24-pin |
| Accessory output | 10A high-current output |
| Navigation radio status outputs | Speed, reverse, and E-brake |
| Factory amplifier | Retained if equipped |
| RAP accessory output | Data-controlled |
| Chime volume | 4 levels and off |
| Compatible steering-wheel control modules | SWI-RC, SWI-RC-1, or SWI-CP2; plug-in connection |
| Update method | In-package updatable using the PAC-UP |
| Vehicle data bus | Kept intact for service |
Why Choose This Product?
The RP3-GM12 brings several factory vehicle signals and functions into a radio replacement setup. Its data-controlled outputs support navigation radio connections, while the adjustable chime gives you a choice of volume or off.
Installation & Compatibility Notes
This interface is described for GM vehicles with a Class II data bus and 24-pin harness. Confirm your vehicle’s data-bus type and harness before choosing the module. The factory amplifier is retained only if equipped.
For steering-wheel controls, the interface has a plug-in connection for an SWI-RC, SWI-RC-1, or SWI-CP2 module. The description does not establish which radio functions are supported.
Frequently Asked Questions
What vehicles is the PAC RP3-GM12 described for?
It is described for GM vehicles with a Class II data bus and a 24-pin harness. Confirm both details for your vehicle before selecting it.
Does it retain the factory amplifier?
It retains the factory-installed amplifier if the vehicle is equipped with one.
Can it provide signals to a navigation radio?
Yes. Its data-controlled output wires provide speed, reverse, and E-brake status.
Can I adjust the factory chime volume?
Yes. Choose one of four volume levels or turn the chime off.
Which steering-wheel control modules connect to it?
It has a plug-in connection for the SWI-RC, SWI-RC-1, or SWI-CP2 module.
Explore More
Shop with 12 Volt Outlet, and explore our PAC brand profile to learn more about the brand.

