Things You'll Need:
- Socket wrench kit
- New horn kit
- Wire crimper/stripper
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Step 1
Locate the original manufacturer's horns by looking under the hood. A Sonata has a low tone horn in the center of the grill and a high tone horn behind the front bumper. You will need to identify the one that you need if you are only replacing one horn.
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Step 2
Remove the mounting bolt with a socket wrench and disconnect the power connector from the horn. You should now be able to remove the original horn. Repeat this step for the other horn.
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Step 3
Mount the new horns with the attachments that came in the kit. You should be able to simply mount the new horns in the old brackets if your kit is a direct factory replacement. Some custom horn kits include air compressors that may require you to install the horns in a non-standard location.
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Step 4
Plug the old wiring harnesses into the new horns if they are compatible to retain the factory wiring. Some aftermarket horn kits may include a custom wiring harness that you will need to connect to your car's original wiring using a wire/crimper splitter.
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Step 5
Test the new horns to ensure they work. Be aware that horns that use a compressor will be extremely loud.
