{"product_id":"pac-radio-replacement-interface-for-select-2000-2013-gm-vehicles-preserves-onstar-steering-wheel-controls","title":"PAC Radio Replacement Interface for Select 2000–2013 GM Vehicles — Preserves OnStar \u0026 Steering Wheel Controls","description":"\u003cstrong\u003ePAC’s radio replacement interface lets you swap the factory radio in select 2000–2013 GM vehicles while preserving OnStar, steering wheel controls and OEM features.\u003c\/strong\u003e\n\n\u003cp\u003eReplacing a factory radio can disable critical vehicle systems or force expensive reprogramming. The PAC Radio Replacement Interface is designed for compatible GM, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab and Saturn models from roughly 2000–2013, keeping most original functions intact and providing navigation and accessory outputs for aftermarket head units. It works with non-amplified and many factory-amplified systems and offers firmware updates for future compatibility.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles will this PAC interface work with?\u003c\/h3\u003e\n\u003cp\u003eThis module supports a wide range of GM-platform vehicles from the 2000–2013 era. Check the full application guide for model-year details, as compatibility covers sedans, trucks, SUVs and vans across multiple brands.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBuick: Century, Lacrosse, Rainier, Rendezvous, Terraza\u003c\/li\u003e\n  \u003cli\u003eCadillac, Chevrolet and GMC: Escalade, Avalanche, Colorado, Suburban, Tahoe, Silverado and more\u003c\/li\u003e\n  \u003cli\u003eAlso compatible with Hummer H2\/H3\/H3T, Isuzu Ascender, Oldsmobile, Pontiac, Saab 9-7X and Saturn Relay\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the PAC interface preserve OnStar and steering wheel controls?\u003c\/h3\u003e\n\u003cp\u003eThe PAC unit retains OnStar voice and call functionality (note: OnStar text messages are not preserved) and keeps factory steering wheel control operation using pre-loaded SWC software. This removes the need for extra programming in most installations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRetains OnStar voice features; OnStar text not retained\u003c\/li\u003e\n  \u003cli\u003ePre-loaded steering-wheel control profiles — no reprogramming required\u003c\/li\u003e\n  \u003cli\u003eIncludes antenna adapter for proper reception\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat OEM features and outputs are maintained after installation?\u003c\/h3\u003e\n\u003cp\u003eThe interface passes through many original equipment signals so safety and convenience features continue to function with an aftermarket radio. It also provides navigation-related outputs and vehicle data needed by modern head units.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWarning chimes with adjustable volume and rear-seat audio\/video support\u003c\/li\u003e\n  \u003cli\u003eBack-up camera trigger, reverse trigger wire and parking brake output\u003c\/li\u003e\n  \u003cli\u003eRetained accessory power (RAP), vehicle speed sensor (VSS) and illumination outputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this with aftermarket amplifiers, DSPs or future firmware updates?\u003c\/h3\u003e\n\u003cp\u003eYes — the PAC interface supports both factory amplified and non-amplified systems, and offers an optional TOSLINK digital output for clean audio to aftermarket amplifiers or DSPs (APA-TOS1 sold separately). Firmware is updateable with PAC’s RadioPRO tool when needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOptional TOSLINK digital output for noise-free digital connections\u003c\/li\u003e\n  \u003cli\u003eWorks with factory Bose amplified systems where applicable\u003c\/li\u003e\n  \u003cli\u003eUSB-updatable firmware via RadioPRO (PAC-UP required separately)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? If you own a compatible GM-era vehicle and want to install a modern aftermarket head unit without losing OnStar voice, steering wheel controls or essential OEM functions, the PAC Radio Replacement Interface is engineered for your needs. It’s especially useful for installers, DIY car-audio enthusiasts and owners who require retained navigation triggers, reverse camera support and reliable integration with factory audio systems.\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 factory Bose amplifier?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the interface supports both factory amplified systems, including many Bose setups, and non-amplified configurations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I update the interface firmware myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Firmware is USB-updatable via PAC’s RadioPRO application, though PAC-UP hardware is required separately.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":55171098837335,"sku":"B00DHUA9VA","price":167.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/pac-front-unit-radio-interface.jpg?v=1790438177","url":"https:\/\/britishgarage.co.uk\/products\/pac-radio-replacement-interface-for-select-2000-2013-gm-vehicles-preserves-onstar-steering-wheel-controls","provider":"British Garage","version":"1.0","type":"link"}