Metra Electronics 70-7901 TurboWire Radio Wiring Harness WIRING HARNESS

The Metra Electronics 70-7901 TurboWire harness connects an aftermarket radio to the factory wiring in select 1990-2001 Mazda vehicles without cutting or splicing a single factory wire. One end plugs into the vehicle's existing radio connector. The other end carries color-coded leads that match standard aftermarket radio wiring, so you match colors, crimp, and move on.

Each lead uses GXSL wire, which stays flexible while you route it behind the dash and carries more current than thin economy wire, so your speakers get the power the head unit actually sends. The insulation is heat resistant, which counts in a dash cavity that bakes every summer. Leads run 7 inches, giving you slack to work behind the radio cage instead of fighting short pigtails in a tight space. Ends arrive pre-stripped, cutting prep time before you pick up a crimper.

Terminals are hand assembled to OEM quality standards and pressure sensitive, so they seat firmly in the connector housing and hold that connection through years of road vibration. The molded plastic connector bodies are built to factory tolerances and click into the vehicle harness on the first try.

Fitment covers a wide slice of the Mazda lineup: 323, 626, 929, Miata, Millenia, MPV, MX3, MX6, Protege, RX7, and the 2001 Tribute. That makes it a practical shelf item for installers working across mixed model years, and a single-part answer for a weekend head unit upgrade in the driveway. Because nothing gets cut, the factory harness stays intact, so the vehicle can go back to stock at trade-in time by unplugging one connector. Installation instructions are included, and the harness carries a lifetime warranty.