I've recently purchased a very smart 1968 Herald 13/60 convertible and I am having a problem with the horn.It blasts when cornering and even went off the other when parked in the garage and no one was anywhere near it! It has been fitted with a wood rimmed MotoLita steering wheel and I am wondering if this has something to do with it .This is an area of the car that I have never had to deal with before ,so would be glad of any suggestions as to the cause and cure of this problem ! Adrian F-L