Hi all, I have a set of old 240Z horns I have had for years. Well I think they came from a 240Z. The problem is they don't have the same mounting bracket that attach to the outer ring like the ones I see in other threads. The mounting brackets use the two some M8 holes to mount to the body, but the bracket attaches to the center post on the horn like the later 280Z. The horns have the original drab green colour. The other thing is they don't have any date stamp. Its blank after th