{"product_id":"pac-steering-wheel-control-interface-swi-cp2-universal-can-bus-analog-module-with-2a-acc-app-setup","title":"PAC Steering Wheel Control Interface SWI-CP2, Universal CAN-Bus\/Analog Module with 2A ACC \u0026 App Setup","description":"\u003cp\u003e\u003cstrong\u003eThe PAC SWI-CP2 is a compact universal interface that preserves your vehicle's factory steering wheel audio controls when you install an aftermarket radio.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eReplacing a factory head unit often disables steering wheel buttons and the vehicle's control bus. The PAC SWI-CP2 (Universal Analog\/CAN-Bus Steering Wheel Control Interface) restores those functions across a wide range of modern vehicles, including systems using CAN bus, GMLAN and Class II data protocols. It offers multiple configuration methods—DIP switches, USB PC flashing or button learning—plus mobile and desktop app support to speed up setup and reduce install time.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the SWI-CP2 keep steering wheel controls working with an aftermarket radio?\u003c\/h3\u003e\n\u003cp\u003eThe SWI-CP2 translates your vehicle’s steering wheel inputs into signals the aftermarket receiver understands. It supports both analog (resistive) systems and digital data-bus systems and provides a selectable output for ACC when needed. Installation is plug-and-play for many receivers and uses a compact module to avoid dashboard clutter.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks with resistive and data-based steering wheel controls\u003c\/li\u003e\n  \u003cli\u003eTranslates CAN bus, GMLAN and Class II signals to receiver commands\u003c\/li\u003e\n  \u003cli\u003eIncludes 2 Amp, 12V ACC output for certain data-bus setups\u003c\/li\u003e\n  \u003cli\u003eCompact wiring harness simplifies connections to aftermarket radios\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat configuration options are available for setting up the module?\u003c\/h3\u003e\n\u003cp\u003eSetup can be done three ways so installers can choose the fastest or most convenient method. Use DIP switch settings referenced from the ControlPRO web or mobile apps, flash settings directly from a PC via USB, or use the built-in button learning mode to map specific steering wheel buttons. The ControlPRO apps provide vehicle lookup and recommended switch settings for accurate configuration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDIP-switch configuration with vehicle lookup in ControlPRO apps\u003c\/li\u003e\n  \u003cli\u003eDirect USB flash from a PC using the ControlPRO desktop app\u003c\/li\u003e\n  \u003cli\u003eOn-device button learning to map custom functions quickly\u003c\/li\u003e\n  \u003cli\u003eMobile apps for iOS and Android to view wiring and setup guidance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the SWI-CP2 reduce installation time compared to other interfaces?\u003c\/h3\u003e\n\u003cp\u003ePAC designed the SWI-CP2 to minimize trial-and-error during installs by offering pre-configured switch tables and app-driven guidance. The ability to flash the module from a PC or pull recommended DIP settings from the ControlPRO database cuts manual lookup time. In many common vehicle and radio combinations the module connects and functions without extensive programming.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eControlPRO apps provide ready-made switch settings and wiring diagrams\u003c\/li\u003e\n  \u003cli\u003eUSB flashing prevents repeated physical programming changes\u003c\/li\u003e\n  \u003cli\u003eButton learning handles nonstandard or custom steering controls quickly\u003c\/li\u003e\n  \u003cli\u003ePlug-and-play compatibility with many popular aftermarket receivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The PAC SWI-CP2 is aimed at car audio installers, DIY enthusiasts and electronics shops that replace factory radios and want to retain steering wheel control features. It’s especially useful when working with newer vehicles using CAN bus or other complex data systems, or when you need a flexible solution that offers fast app-driven setup, USB flashing and button learning for unusual vehicle-button mappings.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will the SWI-CP2 work with my CAN bus vehicle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—SWI-CP2 supports CAN bus, GMLAN and Class II systems; use the ControlPRO app for the correct vehicle settings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I program the module without a PC?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—use DIP switches guided by the ControlPRO apps or the on-device button learning mode for PC-free setup.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":55169489502551,"sku":"B01KX8QWAU","price":76.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/pac-swi-cp2-front-module.jpg?v=1790423056","url":"https:\/\/britishgarage.co.uk\/products\/pac-steering-wheel-control-interface-swi-cp2-universal-can-bus-analog-module-with-2a-acc-app-setup","provider":"British Garage","version":"1.0","type":"link"}