The horns on my 57 Dodge are both Autolite and the Origional horns on my 59 Dodge were Spartan however one didn't work so i took an Autolite horn from my 59 Dodge Parts car and put it on the car and it worked fine but then somehow they stopped working all together and it was something that they were getting a double ground or not getting a ground but it's been fixed and i dont' know how. but all the horns had a 4 wire connection. Walter |