{"product_id":"pac-radio-replacement-interface-for-gm-2006-2025-onstar-steering-wheel-control-retention","title":"PAC Radio Replacement Interface for GM 2006–2025 — OnStar \u0026 Steering Wheel Control Retention","description":"\u003cp\u003e\u003cstrong\u003ePAC’s radio replacement interface lets you swap the factory head unit in many 2006–2025 GM vehicles while keeping OnStar, steering wheel controls, Bluetooth and rear-seat audio functions intact.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eSwapping a factory radio in GM trucks, SUVs and cars can disable useful factory systems. This PAC interface is designed specifically to preserve those systems when installing an aftermarket head unit. It provides the necessary wiring, outputs and retainers so you can upgrade audio without losing core vehicle features.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this interface preserve OnStar and factory Bluetooth?\u003c\/h3\u003e\n\u003cp\u003eThe module maintains the vehicle’s OnStar connection and, on supported 2009+ models, preserves the factory Bluetooth hands-free functionality. It routes communication signals and power so the factory services keep working after the stereo swap.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBuilt-in OnStar retention harness for compatible GM models\u003c\/li\u003e\n  \u003cli\u003eFactory Bluetooth retention on 2009 and newer vehicles\u003c\/li\u003e\n  \u003cli\u003ePreserves hands-free calling and factory voice controls when supported\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill steering wheel controls and rear-seat audio still work?\u003c\/h3\u003e\n\u003cp\u003eYes—this interface retains steering wheel control (SWC) inputs and rear-seat audio controls where the vehicle originally supported them. The unit translates factory control signals into commands the aftermarket radio understands.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSteering wheel control retention for common GM command protocols\u003c\/li\u003e\n  \u003cli\u003eRear-seat audio control passthrough and dual-zone support\u003c\/li\u003e\n  \u003cli\u003eIllumination output keeps display dimming synchronized with dash lighting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat vehicle outputs and safety integrations are supported?\u003c\/h3\u003e\n\u003cp\u003eThe PAC unit provides practical outputs needed for a complete install, including navigation outputs and parking brake\/ reverse signals. These outputs let aftermarket radios interface with backup cameras, navigation screens and safety interlocks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReverse wire output for backup camera activation\u003c\/li\u003e\n  \u003cli\u003eNavigation outputs for compatible head units\u003c\/li\u003e\n  \u003cli\u003eParking brake output to satisfy safety lockouts on some radios\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does installation impact functionality and compatibility?\u003c\/h3\u003e\n\u003cp\u003eInstallation preserves original vehicle features while enabling modern head unit capabilities, but compatibility depends on specific GM model year and trim. Use the PAC fitment guide or consult a professional installer to confirm vehicle compatibility and needed harnessing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits select GM vehicles from 2006 through 2025—confirm with PAC fit guide\u003c\/li\u003e\n  \u003cli\u003eRequires matching harnesses and clean connections for full feature retention\u003c\/li\u003e\n  \u003cli\u003eProfessional installation recommended for complex dashboards or navigation integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This interface is for DIYers and installers upgrading the stereo in compatible GM cars, trucks and SUVs who want to retain factory conveniences such as OnStar, steering wheel controls, factory Bluetooth (2009+), rear-seat audio and navigation outputs. If you need to preserve these features while adding an aftermarket head unit, the PAC radio replacement interface provides the wiring and outputs required for a professional result.\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 unit keep my factory OnStar working?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the interface retains OnStar on compatible GM models so the service continues after radio replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it preserve steering wheel controls and Bluetooth?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It retains steering wheel controls and factory Bluetooth on supported vehicles (Bluetooth retention typically for 2009+ models).\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":55161279775063,"sku":"B009P8A044","price":167.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/pac-radio-interface-front-view.jpg?v=1790323861","url":"https:\/\/britishgarage.co.uk\/products\/pac-radio-replacement-interface-for-gm-2006-2025-onstar-steering-wheel-control-retention","provider":"British Garage","version":"1.0","type":"link"}