Review on 🔌 Metra 70-7903 Wiring Harness for 2001-Up Mazda Vehicles: Efficient Installation Solution by Eddie Gordon

I used it to connect my new Kenwood receiver to my 2007 Mazda 3 radio wiring harness. Very easy to install, basically just match the Metra harness wires (by color) to the wires of your new receiver harness and you are good to go. However, I would always check the wires for minor differences (i.e. check your receiver's installation instructions with the Metra wire harness). You can connect the wires with nuts, soldering or crimping; However, I tried 18-24 #600 posi-lock connectors in a pack of 9 and they were AMAZING! Simply strip the wire, then insert and twist the wire. Posi also offers Posi-Products Posi-Twist 18-26 gauge wire connectors when you need to splice multiple wires together. Much luck!