Metra 70-1862 GM 21-Pin Radio to GM 12-Pin Adapter Harness

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Metra 70-1862 is a GM 21-pin to GM 12-pin radio adapter harness for GM radio wiring adapter applications using a 21-pin radio to 12-pin vehicle connection. It is used when the inst allation requires adapting a GM 21-pin radio connection to a GM 12-pin connection.At a Glance GM 21-pin radio to GM 12-pin adapter harness Application-specific adapter for compatible GM radio wiring installations Supports cleaner connection when the matching GM connectors are present Helps avoid cutting factory wiring when used in the correct application Use current fitment data or installer verification before purchase System / Wiring Notes Manufacturer vehicle compatibility is not currently listed for this part Verify connector style, radio type, and vehicle application before installation This is an adapter harness, not a complete dash kit or feature-retention interface Installation Notes Confirm exact vehicle fitment, factory audio system, and radio connector before installation Additional parts such as a dash kit, antenna adapter, steering wheel control interface, or data interface may be required for a complete installation Professional installation is recommended for best results Check current manufacturer instructions and vehicle application data before installation What’s in the BoxMetra 70-1862 GM radio adapter harnessTechnical Specifications Brand: Metra Model: 70-1862 Product Type: Radio adapter harness Application: GM 21-pin radio to GM 12-pin adapter harness applications Compatibility Type: Application-specific Connection Type: GM 21-pin radio to GM 12-pin adapter Vehicle Fitment: Verify by connector and current manufacturer fitment data Identifiers & Packaging MPN: 70-1862 UPC: 086429003556 Sold As: Each Included Components: GM radio adapter harness Why Buy From MCOR Automotive Authorized retailer for the brands we sell Specialists in vehicle audio integration, radio replacement parts, and installation accessories 22+ years of professional automotive electronics experience Expert support for compatibility verification and proper setup Show more