Sc300/Sc400 quick release horn wiring

Showing how to wire your steering wheel quick release horn, as there isn’t much on YouTube or forums how to do these with our cars.

I have a 1993 sc300 but it should still be the same thru most if not all the years of both sc300 and sc400

If you want to keep up with the rest of my car build my instagram is @sexy_ricer


Written run through
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Locate the harness, cut or de-pin the far left or green wire

Get a piece of metal or the ring that came with your NRG or quick release kit, cut it up or make it fit, bend a tab so it comes into contact with the copper plate/ring on the back of your hub.

Connect that green wire to the metal plate

Then plug in your corresponding wires from the hub, to the quick release face, then from the steering wheel to the horn button.

It’s as easy as that. Feel free to comment any questions and I’d be happy to answer