{"product_id":"mercedes-glc-x253-basic-sound-speaker-upgrade-package-helix-ci3","title":"Mercedes GLC X253 - Speaker Upgrade Package | HELIX Ci3","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan class=\"citation-2450\"\u003eOverhaul the constrained factory audio mapping and fully liberate the acoustic potential of your vehicle cabin with the \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"129\"\u003e\u003cspan class=\"citation-2450\"\u003eMercedes GLC X253 - Speaker Upgrade Package | HELIX Ci3\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-2450 citation-end-2450\"\u003e.\u003csup class=\"superscript\" data-turn-source-index=\"1\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e Specially calibrated to rectify the hollow midrange, flat vocal projection, and lack of high-frequency detail typical of the standard unamplified basic factory sound system, this targeted acoustic performance package upgrades your entire multi-door soundstage. \u003c\/span\u003e\u003cspan class=\"citation-2449\"\u003eLoaded with ultra-efficient, highly advanced \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"492\"\u003e\u003cspan class=\"citation-2449\"\u003eHELIX COMPOSE Ci3\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-2449 citation-end-2449\"\u003e series midranges, titanium dome tweeters, and cohesive coaxial rear speakers, this package introduces exceptional vocal clarity, clinical high-frequency sparkle, and a lush, natural soundstage—all while mounting completely hidden behind your original vehicle luxury door cards.\u003csup class=\"superscript\" data-turn-source-index=\"2\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003eKey Benefits\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\" id=\"p-rc_d4faf14fd6dfedc7-462\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003ePremium HELIX COMPOSE Ci3 Technology:\u003c\/b\u003e \u003cspan class=\"citation-2448 citation-end-2448\"\u003eFeatures high-resolution front component midranges engineered with rigid, lightweight Cenosphere coated paper cones alongside premium titanium dome tweeters, resulting in pristine vocal projection and sweet, clinical, non-fatiguing high-frequency extension.\u003csup class=\"superscript\" data-turn-source-index=\"3\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003eMatched Rear Cabin Cohesion:\u003c\/b\u003e Swaps out the weak rear full-range factory drivers with premium HELIX COMPOSE Ci3 coaxial speakers, keeping the acoustic signature identical throughout the SUV's cabin.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\" id=\"p-rc_d4faf14fd6dfedc7-463\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003ePreserved Luxury Infrastructure:\u003c\/b\u003e \u003cspan class=\"citation-2447 citation-end-2447\"\u003eUtilizes direct, architectural structural frame baskets and custom vehicle-matched wiring connectors to interface with the original speaker harness points without cutting any wires.\u003csup class=\"superscript\" data-turn-source-index=\"4\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,3,0\"\u003e\u003cb data-path-to-node=\"7,3,0\" data-index-in-node=\"0\"\u003eDirect Plug \u0026amp; Play System Fitment:\u003c\/b\u003e Integrates natively with your GLC standard audio footprint using a vehicle-specific HELIX COMPOSE upgrade system that connects directly into the factory hardware locations with zero wire cutting or structural wire splicing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"8\" id=\"p-rc_d4faf14fd6dfedc7-464\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-2446 citation-end-2446\"\u003ePlease Read Before Purchasing\u003csup class=\"superscript\" data-turn-source-index=\"5\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/b\u003e \u003cbr\u003e\u003cspan class=\"citation-2444\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-2444 citation-2445 citation-end-2445\"\u003eOur Plug \u0026amp; Play (PnP) upgrade packages are listed primarily for dealer use and professional installation, but some may also suit confident DIY users, particularly those based on MATCH sy\u003csup class=\"superscript\" data-turn-source-index=\"6\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-2444 citation-end-2444\"\u003estems.\u003csup class=\"superscript\" data-turn-source-index=\"7\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"source-title\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"source-inline-chip-container luminous-sources hide-from-message-actions ng-star-inserted\"\u003e\u003c\/div\u003e\n\u003cp data-path-to-node=\"9\" id=\"p-rc_d4faf14fd6dfedc7-465\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003eWho These Packages Are For\u003c\/b\u003e \u003cbr\u003e\u003cspan class=\"citation-2443 citation-end-2443\"\u003eWhile MATCH systems are generally more accessible for DIY installations, HELIX packages typically require advanced tuning skills to unlock their full potential.\u003csup class=\"superscript\" data-turn-source-index=\"8\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\" id=\"p-rc_d4faf14fd6dfedc7-466\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003eInstallation \u0026amp; Tuning Notes\u003c\/b\u003e \u003cbr\u003e\u003cspan class=\"citation-2442 citation-end-2442\"\u003eMost packages install easily, but minor modifications may be needed depending on your vehicle's exact year and trim.\u003csup class=\"superscript\" data-turn-source-index=\"9\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\" id=\"p-rc_d4faf14fd6dfedc7-467\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eInstallation\u003c\/b\u003e \u003cbr\u003e\u003cspan class=\"citation-2441 citation-end-2441\"\u003ePlease note: Installation fees are not included in the product price.\u003csup class=\"superscript\" data-turn-source-index=\"10\"\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-2440 citation-end-2440\"\u003eYour nearest dealer will be happy to provide a complete quote including supply, installation, and tuning.\u003csup class=\"superscript\" data-turn-source-index=\"11\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"12\"\u003eAs an official authorized dealer, \u003cb data-path-to-node=\"12\" data-index-in-node=\"34\"\u003eMC Audio Sydney\u003c\/b\u003e makes it seamless to transition from purchase to performance. Customers can purchase this complete combo online and bring their vehicle directly to our premier Sydney facility, where our specialized technicians will handle the complete physical integration and absolute phase correction to lock in premium performance.\u003c\/p\u003e\n\u003cp data-path-to-node=\"13\"\u003e📦 Available for online purchase through MC Audio Sydney. As a professional car audio integration specialist, \u003cb data-path-to-node=\"13\" data-index-in-node=\"110\"\u003eMC Audio Sydney supplies genuine components and offers expert installation services in Sydney, with Australia-wide shipping available\u003c\/b\u003e.\u003c\/p\u003e","brand":"Mechatronicar Audio","offers":[{"title":"Default Title","offer_id":52035457122589,"sku":"103318","price":1105.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0898\/7607\/0685\/files\/0.80821600_1784219310.webp?v=1784219313","url":"https:\/\/mcaudio.shop\/products\/mercedes-glc-x253-basic-sound-speaker-upgrade-package-helix-ci3","provider":"Mechatronicar Audio","version":"1.0","type":"link"}