{"product_id":"pac-ap4-gm71-amppro-amplifier-interface","title":"PAC AmpPRO AP4-GM71 Amplifier Integration Interface for Select GM Bose Ethernet Vehicles","description":"\u003cp\u003eThe \u003cstrong\u003ePAC AmpPRO AP4-GM71 amplifier integration interface\u003c\/strong\u003e lets you add aftermarket amplification to the exact factory-audio applications listed below without replacing the original radio. It provides clean amplifier-ready outputs while retaining supported factory radio controls, warning chimes, navigation prompts, Bluetooth audio, and other application-dependent audio functions.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eAt a Glance\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVehicle-specific AmpPRO interface for upgrading the factory amplified audio system while keeping the original radio\u003c\/li\u003e\n\u003cli\u003eFront, rear, and subwoofer preamp outputs rated up to 5 volts RMS\u003c\/li\u003e\n\u003cli\u003eRetains supported factory volume, fade, balance, tone controls, chimes, prompts, and communication audio\u003c\/li\u003e\n\u003cli\u003eIncludes a wired subwoofer-level control for convenient level adjustment\u003c\/li\u003e\n\u003cli\u003eOptional TOSLINK output is available with the separately sold PAC APA-TOS1.\u003c\/li\u003e\n\u003cli\u003eAftermarket amplifier, amplifier power wiring, signal cables, speakers, and application accessories are sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eExact Vehicle Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eFind your vehicle below and match the year, model, factory audio system, screen, connector, and equipment details in the same row. Applications are derived from PAC’s June 2026 interface matrix and validated against the current dealer product record. If the details do not match, contact MCOR before ordering.\u003c\/p\u003e\u003cdiv class=\"table-wrapper\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:8px;border:1px solid #ddd;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px;border:1px solid #ddd;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px;border:1px solid #ddd;\"\u003eYears\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px;border:1px solid #ddd;\"\u003eFactory Audio \/ Equipment\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:8px;border:1px solid #ddd;\"\u003eApplication Accessories\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eCadillac\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eCTS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2020-2024\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system; With Bose\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApplication-dependent amplifier wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eBlazer\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2019-2025\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApplication-dependent amplifier wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eCamaro\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2019-2024\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system; UQA\/UQS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApplication-dependent amplifier wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eColorado\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system; IOS\/IOT\/IOK\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApplication-dependent amplifier wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eCorvette\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2020-2025\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApplication-dependent amplifier wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eSilverado\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2020-2026\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system; IOS\/IOT\/IOK\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eAPH-GM02, AC-LGD-60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eSilverado HD\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2021-2026\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApplication-dependent amplifier wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eSuburban\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2021-2024\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system; IOS\/IOT\/IOK\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApplication-dependent amplifier wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eTahoe\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2021-2024\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system; IOS\/IOT\/IOK\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eAPH-GM02, AC-LGD-60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eChevrolet\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eTraverse\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2020-2023\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system; IOS\/IOT\/IOK\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eAPH-GM02, AC-LGD-60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eGMC\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eAcadia\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2020-2023\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApplication-dependent amplifier wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eGMC\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eCanyon\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2019-2022\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system; IOS\/IOT\/IOK\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eAPH-GM02, AC-LGD-60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eGMC\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eSierra\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2020-2026\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system; IOS\/IOT\/IOK\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApplication-dependent amplifier wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eGMC\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eSierra HD\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2021-2025\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApplication-dependent amplifier wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eGMC\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eYukon\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2021-2024\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApplication-dependent amplifier wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eGMC\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eYukon XL\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2021-2024\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system; IOS\/IOT\/IOK\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApplication-dependent amplifier wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eHummer\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eEV\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e2022-2025\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ecompatible factory Bose Ethernet amplified system\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eApplication-dependent amplifier wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003e\u003cstrong\u003eCompatibility \u0026amp; Installation Requirements\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory system:\u003c\/strong\u003e compatible factory Bose Ethernet amplified system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory amplifier:\u003c\/strong\u003e The factory amplifier must be removed when this interface is installed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplifier connections:\u003c\/strong\u003e Use the application-specific PAC speaker harness and load resistors listed in the table when required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgramming:\u003c\/strong\u003e Install the current PAC firmware and follow the current application guide before final system configuration.\u003c\/li\u003e\n\u003cli\u003eRequires a compatible factory Bose Ethernet amplified system.\u003c\/li\u003e\n\u003cli\u003eNon-Silverado\/Sierra applications require the current hardware revision with the necessary connectors.\u003c\/li\u003e\n\u003cli\u003eProfessional installation and system tuning are strongly recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eCompatible \u0026amp; Related Products\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/apa-tos1\"\u003ePAC APA-TOS1 optical-output adapter\u003c\/a\u003e - optional digital-output accessory\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/ac-lgd-60\"\u003ePAC AC-LGD-60\u003c\/a\u003e - required only for the application rows that specify it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/aph-gm02\"\u003ePAC APH-GM02\u003c\/a\u003e - required only for the application rows that specify it\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\u003cdiv class=\"table-wrapper\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ePAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eAP4-GM71\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eProduct Family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eAmpPRO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eVehicle-specific amplifier integration interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eAudio Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eFront, rear, and subwoofer preamp outputs; up to 5 volts RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eUPC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e609098903509\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCurrent Manufacturer Resource\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003ca href=\"http:\/\/1164440.app.netsuite.com\/core\/media\/media.nl?id=16921551\u0026amp;c=1164440\u0026amp;h=DHMfX_JV9ANb7NJXOqla41w0ZMlrh5VL8p3exqYUtY2S4Qzh\u0026amp;_xt=.pdf\" target=\"_blank\" rel=\"noopener\"\u003eAP4-GM71 Install Guide\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOne genuine PAC AmpPRO AP4-GM71 interface module\u003c\/li\u003e\n\u003cli\u003eManufacturer-supplied vehicle connection harnesses shown for this exact part number\u003c\/li\u003e\n\u003cli\u003eWired subwoofer-level control and manufacturer-supplied connection leads\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSold separately:\u003c\/strong\u003e aftermarket amplifier, amplifier power\/ground wiring, RCA or optical cables, speakers, application-specific APH harnesses, load resistors, and any optional accessories not expressly stated as included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment disclaimer:\u003c\/strong\u003e Compatibility is not determined by year and model alone. Verify the exact vehicle, factory radio, screen, premium-audio brand, amplifier, connector style, firmware, and application accessories before ordering. Product photos show the listed interface package; surrounding installation equipment is not included. Contact MCOR Automotive through the chat button for application help.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eWhy Buy From MCOR Automotive\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAuthorized PAC retailer with manufacturer-backed warranty support\u003c\/li\u003e\n\u003cli\u003eVehicle-specific compatibility help before purchase\u003c\/li\u003e\n\u003cli\u003eProfessional car-audio integration, tuning, and installation support\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PAC","offers":[{"title":"Default Title","offer_id":54716834939159,"sku":"PAC AP4-GM71 609098903509","price":479.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3185\/7431\/files\/AP4-GM71_01.jpg?v=1786901984","url":"https:\/\/shop.mcorautomotive.com\/products\/pac-ap4-gm71-amppro-amplifier-interface","provider":"shop.mcorautomotive.com","version":"1.0","type":"link"}