{"product_id":"pac-c2r-chy4-chrysler-radio-replacement-interface-blue-can-bus-retains-chimes-steering-wheel-controls","title":"PAC C2R-CHY4 Chrysler Radio Replacement Interface — Blue, CAN-bus, retains chimes \u0026 steering-wheel controls","description":"\u003cp\u003e\u003cstrong\u003eThe PAC C2R-CHY4 is a plug-and-play radio replacement interface that lets you swap aftermarket head units into select Chrysler vehicles while preserving warning chimes, vehicle data, and steering-wheel controls.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you're upgrading a factory radio in a compatible Chrysler from 2005–2011, this compact CAN-bus interface handles the vehicle's digital signals so your new stereo works with existing systems. It bridges amplified and non-amplified setups, provides a 12V accessory output, and keeps essential alerts and memory features intact so you don’t lose conveniences after the swap.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles and radios does this module support?\u003c\/h3\u003e\n\u003cp\u003eThe C2R-CHY4 was designed for select Chrysler models using CAN Bus communication between 2005 and 2011. It contains SWI-CAN \/ SWI-CAN2 modules to translate steering wheel commands and system messages for most aftermarket head units.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with many Chrysler factory harnesses from 2005–2011\u003c\/li\u003e\n  \u003cli\u003eWorks with both amplified and non-amplified factory audio systems\u003c\/li\u003e\n  \u003cli\u003eIncludes modules to translate steering-wheel input (single-wire output)\u003c\/li\u003e\n  \u003cli\u003eRetains vehicle chimes, memory seat data, and warning alerts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does it preserve vehicle warnings and memory functions?\u003c\/h3\u003e\n\u003cp\u003eThe interface intercepts and passes CAN-bus messages so the vehicle’s central systems still receive notifications for events such as low fuel, door ajar, and backup alerts. It preserves stored data and chime signals rather than disabling them when the factory radio is removed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaintains backup chime, low-fuel, door\/hatch ajar sounds\u003c\/li\u003e\n  \u003cli\u003ePreserves memory seat and other stored vehicle settings\u003c\/li\u003e\n  \u003cli\u003eBuilt-in buzzer ensures audible alerts remain functional\u003c\/li\u003e\n  \u003cli\u003eRetains and forwards relevant CAN data to vehicle modules\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat wiring and vehicle signals does the interface provide?\u003c\/h3\u003e\n\u003cp\u003eThis harness supplies common trigger and signal outputs installers need when fitting an aftermarket radio. It includes several dedicated outputs for power, vehicle speed sensing, illumination, parking brake, and reverse signals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e12V accessory output (Retained Accessory Power) to power head units\u003c\/li\u003e\n  \u003cli\u003eVSS (vehicle speed signal) output for navigation or speed-based features\u003c\/li\u003e\n  \u003cli\u003eIllumination, parking brake, and reverse trigger outputs\u003c\/li\u003e\n  \u003cli\u003eSingle-wire output for steering wheel control modules\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre there any features it does not keep?\u003c\/h3\u003e\n\u003cp\u003eThe C2R-CHY4 preserves many factory conveniences, but some advanced driver-assist systems are not retained. The interface supplies a break wire and common accessory outputs but does not maintain blind spot detection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDoes not retain blind spot detection systems\u003c\/li\u003e\n  \u003cli\u003eSupplies a break wire where needed for factory integrations\u003c\/li\u003e\n  \u003cli\u003eDesigned for radio replacement — other vehicle modules remain separate\u003c\/li\u003e\n  \u003cli\u003eInstaller should verify compatibility with specific model options\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Installers and knowledgeable DIYers swapping aftermarket radios into compatible Chrysler vehicles from 2005–2011 who want to keep factory chimes, steering controls, and vehicle data intact. The PAC C2R-CHY4 is aimed at technicians needing a reliable CAN-bus translator that supports both amplified and non-amplified systems without sacrificing essential alerts or stored settings. Always confirm vehicle year, trim, and factory audio configuration before ordering to ensure seamless integration.\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 this retain my steering wheel audio controls?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it provides a single-wire output and includes SWI-CAN modules to translate steering-wheel commands for most aftermarket radios.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the adapter keep vehicle warning chimes and memory settings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the interface retains warning chimes, backup alerts, and stored data like memory seat settings, while supplying a 12V accessory output.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":48081465507998,"sku":"B001U3ULQO","price":121.88,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/pac-c2r-chy4-front-view-interface.jpg?v=1785805856","url":"https:\/\/northtrailauto.ca\/products\/pac-c2r-chy4-chrysler-radio-replacement-interface-blue-can-bus-retains-chimes-steering-wheel-controls","provider":"North Trail Auto","version":"1.0","type":"link"}