I just completed the wiring on my 47 AD truck to 12v and the original horn was sounding horrible. I installed the regulator two days ago and it brought the horn back to its original sound. Works instant and keeps that classic feel.


https://www.amazon.com/MGGi-Converter-Regulator-Transformer-Waterproof/dp/B0D4ZHWBR1?th=1&psc=1


1951 Chevy 6400 2 ton