Radio wiring diagram needed?

2018 KIA OPTIMA
132,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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HSMITH19
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  • 1 POST
I'm trying to install an aftermarket amp and subwoofer in my vehicle listed above LX model, that currently only has a stock radio and speakers with no amp or sub. I'm having a hard time figuring out how to wire everything up.
Jan 12, 2025 at 6:11 PM
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AL514
  • ✓ASE Certified Mechanic
  • 5,587 POSTS
  • ASE Certified Mechanic
Hello, to begin with there are a couple different VIN numbers and designs for the 2.4liter. I assume this is not a hybrid engine? Aftermarket installs can be technical on these newer vehicles. So, keep track of the stock wiring in case you need to put anything back together. It doesn't hurt to take pictures of sections of the harness you're going to tap into as well. The 2.4liters listed are 2018 Kia Optima (JFA) VIN 5XX and Kia Optima (JF) VIN KNA. But we can start with the VIN, you can take a picture of the VIN tag and service info will take us right to the correct vehicle.
Jan 13, 2025 at 3:17 PM
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