{"product_id":"helix-mercedes-4-inch-speaker-upgrade-type-5-ci3-midrange-to-suit-various-mercedes-models-3-ohm","title":"HELIX Mercedes 4\" Speaker Upgrade Type 5, Ci3 Midrange to Suit Various Mercedes Models, 3Ω","description":"\u003cp\u003eThis Soundtech kit pairs a HELIX Ci3 Midrange with the matching vehicle specific adapter, to suit Various Mercedes models. The full parts list is below so you 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\u003e1 x HELIX Ci3 M100FM-S3, 4\" Midrange Speaker Pair, FlexMount, 3Ω\u003c\/li\u003e\n\u003cli\u003e1 x HELIX FlexMount CFMK100, 4\" 3D Printed Speaker Adapter, Pair (version CFMK100 MB.5, Mercedes)\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\u003eSuits\u003c\/th\u003e\n\u003ctd\u003eVarious Mercedes models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSoundtech speaker type\u003c\/th\u003e\n\u003ctd\u003eType 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpedance\u003c\/th\u003e\n\u003ctd\u003e3Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHow it connects\u003c\/th\u003e\n\u003ctd\u003eThe factory speaker comes out and the new speaker goes in using the vehicle specific adapter. Soundtech says it fits the factory location without cutting and can be returned to factory, though some vehicles differ, so a pre-check is recommended.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eSoundtech matches cars to this kit by the factory speaker type. Send us your VIN or build date and we will check your car uses this speaker location before you order.\u003c\/p\u003e\u003ch2\u003eInstallation and tuning\u003c\/h2\u003e\u003cp\u003eSoundtech designed this for a straightforward install using the supplied adapter.\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 suits Various Mercedes models. Soundtech groups these kits by factory speaker type, so send us your VIN and we will confirm before you order.\u003c\/p\u003e\u003ch3\u003eWhat comes in the package?\u003c\/h3\u003e\u003cp\u003e1 x HELIX Ci3 M100FM-S3; 1 x HELIX FlexMount CFMK100. The full descriptions are in the parts list above.\u003c\/p\u003e\u003ch3\u003eHow does it connect to the factory system?\u003c\/h3\u003e\u003cp\u003eThe factory speaker comes out and the new speaker goes in using the vehicle specific adapter. Soundtech says it fits the factory location without cutting and can be returned to factory, though some vehicles differ, so a pre-check is recommended.\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 suits Various Mercedes models. Soundtech groups these kits by factory speaker type, so send us your VIN and we will confirm before you order.\"}}, {\"@type\": \"Question\", \"name\": \"What comes in the package?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"1 x HELIX Ci3 M100FM-S3; 1 x HELIX FlexMount CFMK100. The full descriptions are in the parts list above.\"}}, {\"@type\": \"Question\", \"name\": \"How does it connect to the factory system?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The factory speaker comes out and the new speaker goes in using the vehicle specific adapter. 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