PAC SWI-CP2 Universal Steering Wheel Control Interface — CAN-bus & Analog Adapter with USB Flashing

Pac SWI-CP2 preserves your vehicle's factory steering wheel controls when installing an aftermarket radio, supporting analog and CAN-bus systems. Replacing a factory head unit shouldn't mean losing the convenience and safety of steering wheel controls. The Pac SWI-CP2 (ControlPRO) is a universal interface module that translates your vehicle's resistive or data-bus steering wheel signals into commands an aftermarket receiver can understand. Designed for modern vehicles with CAN, GMLAN, and Class II networks, this compact module aims to simplify installation and restore native button functionality quickly.

How will the SWI-CP2 work with my aftermarket radio?

The SWI-CP2 converts factory steering wheel inputs—whether resistive (analog) or data-bus—into standard outputs compatible with most aftermarket receivers. It supports both direct DIP-switch configuration and PC flash programming for precise receiver mapping.

• Outputs compatible with nearly all popular aftermarket head units
• Selectable wiring modes for analog or data-bus systems
• USB PC flashing for custom receiver presets
• Button learning mode allows manual mapping if needed

How long does installation and setup take?

The SWI-CP2 is engineered to reduce installation time compared with similar interfaces. Basic installations can be plug-and-play using the provided wiring harness and recommended DIP switch layout, while advanced setups use the ControlPRO apps for quick vehicle lookups or direct flashing.

• Plug-and-play wiring where applicable
• DIP-switch presets available from the ControlPRO Web-APP
• PC flashing via USB for one-step configuration
• Button learning to finalize custom mappings in minutes

What configuration options are available for different vehicles?

Configuration is flexible: choose DIP switches guided by the ControlPRO lookup, flash settings from a PC using the ControlPRO application, or teach buttons manually. The mobile and desktop apps cover most popular vehicle makes and models to provide the correct settings quickly.

• Vehicle lookup and recommended switch settings via Android, iOS, or Web apps
• Direct flash for PC users with USB connection
• Fallback button-learning procedure for custom setups or unsupported models
• 2A 12V ACC output for data-bus accessory control when required

Will it work with modern vehicle networks like CAN and GMLAN?

Yes—the SWI-CP2 supports a wide range of modern electronic architectures, including CAN bus and GMLAN systems. It is built to coexist with complex vehicle networks so steering wheel functions continue to operate after head unit replacement.

• Compatible with CAN, GMLAN, Class II, and resistive steering systems
• Designed to avoid interference with factory networks
• Software and DIP-switch options to match network protocols
• Learning mode for edge-case or custom vehicles

Who is this for? The Pac SWI-CP2 is aimed at car audio installers, DIY enthusiasts, and anyone upgrading their factory radio who wants to keep steering wheel controls intact. It’s especially useful when working with recent model vehicles that use CAN or GMLAN networks, or when installers want a faster, more predictable configuration workflow using ControlPRO apps and USB flashing. If you need a compact, versatile interface that supports multiple configuration routes and minimizes installation time, the SWI-CP2 is built for that role.

FAQ

Q: Does the SWI-CP2 support CAN-bus vehicles?

A: Yes. The SWI-CP2 supports CAN, GMLAN, Class II, and resistive steering wheel systems for modern vehicles.

Q: Can I configure the module without a computer?

A: Yes. Configure via DIP switches using the ControlPRO app lookup or use the onboard button-learning procedure without a PC.