{"product_id":"mercedes-glc-x253-burmester-speaker-upgrade-package-helix-ci3","title":"Mercedes GLC X253 Burmester Speaker Upgrade Package | HELIX Ci3 103319","description":"\u003cp\u003eSoundtech put this speaker upgrade package together for the Mercedes GLC X253 Burmester with the basic (non premium) sound system. Every part is picked for this car, and the full parts list is below so you and your installer know exactly what turns up before any trim comes off.\u003c\/p\u003e\u003ch2\u003eWhat is in the package\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e2 x HELIX FlexMount CFMK20, 1\" 3D Printed Speaker Adapter, Pair (version CFMK20 MB.1, Mercedes)\u003c\/li\u003e\n\u003cli\u003e2 x HELIX FlexMount CFMK100, 4\" 3D Printed Speaker Adapter, Pair (version CFMK100 MB.1, Mercedes)\u003c\/li\u003e\n\u003cli\u003e2 x HELIX Ci3 K100.2FM-S3 MK2, 4\" 2 way Component Speaker Set, FlexMount, 3Ω\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eParts list as set up on the Soundtech package listing, checked 9 November 2026.\u003c\/p\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eVehicle\u003c\/th\u003e\n\u003ctd\u003eMercedes GLC X253 Burmester\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFactory sound system\u003c\/th\u003e\n\u003ctd\u003eBasic (non premium) sound system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSystem\u003c\/th\u003e\n\u003ctd\u003eHELIX Ci3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eSoundtech does not list model years for this package. If you are not sure your car matches, send us the VIN or build date and we will check before you order.\u003c\/p\u003e\u003ch2\u003eInstallation and tuning\u003c\/h2\u003e\u003cp\u003eSoundtech lists its plug and play packages mainly for dealer and professional installation, although MATCH based packages can suit a confident DIY installer.\u003c\/p\u003e\u003ch2\u003eWarranty\u003c\/h2\u003e\u003cp\u003eSoundtech, the Australian distributor, gives its products a standard 12 month Australian warranty. That is on top of your rights under the Australian Consumer Law.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWill this suit my car?\u003c\/h3\u003e\u003cp\u003eIt is made for the Mercedes GLC X253 Burmester with the basic (non premium) sound system. If you are not sure about your build or factory audio, send us the VIN and we will check.\u003c\/p\u003e\u003ch3\u003eWhat comes in the package?\u003c\/h3\u003e\u003cp\u003e2 x HELIX FlexMount CFMK20; 2 x HELIX FlexMount CFMK100; 2 x HELIX Ci3 K100.2FM-S3 MK2. The full descriptions are in the parts list above.\u003c\/p\u003e\u003ch3\u003eWhat warranty does it have?\u003c\/h3\u003e\u003cp\u003eSoundtech gives a standard 12 month Australian warranty, on top of your rights under the Australian Consumer Law.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Will this suit my car?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is made for the Mercedes GLC X253 Burmester with the basic (non premium) sound system. If you are not sure about your build or factory audio, send us the VIN and we will check.\"}}, {\"@type\": \"Question\", \"name\": \"What comes in the package?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"2 x HELIX FlexMount CFMK20; 2 x HELIX FlexMount CFMK100; 2 x HELIX Ci3 K100.2FM-S3 MK2. The full descriptions are in the parts list above.\"}}, {\"@type\": \"Question\", \"name\": \"What warranty does it have?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Soundtech gives a standard 12 month Australian warranty, on top of your rights under the Australian Consumer Law.\"}}]}\u003c\/script\u003e","brand":"SOUNDTECH","offers":[{"title":"Default Title","offer_id":67937251557469,"sku":"103319","price":1260.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/9528\/9437\/files\/103319_cbd32d2c-50c9-432c-9e48-e14617e89b0b.jpg?v=1794052805","url":"https:\/\/frankiesautoelectrics.com.au\/products\/mercedes-glc-x253-burmester-speaker-upgrade-package-helix-ci3","provider":"Frankies Auto Electrics","version":"1.0","type":"link"}