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I recently bought a 130 Db WOLO horn and button/wire kit. The horn is to be used as an additional horn to my factory one. I thought it might be a good idea to buy a relay as well for safety purposes but I don't know whether to buy a 4 pronged relay or a 5 pronged one.

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  • Chevrolet Master
  • 8,589 Answers

Hi, a horn needs only 4 blades.

Please see my tip at http://www.fixya.com/cars/r6022358-relay_check . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

Posted on Apr 02, 2011

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Posted on Jan 02, 2017

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