I'm looking for a banjo steering wheel horn button. This is the standard replica banjo wheel that comes with a Vintage Speedster. I just looked at the back of the wheel and I see that it is a "Flat 4." When I search for these online, I find several different sizes and I don't know which one is correct for these wheels. I'll buy new if I have to, so if anyone can send me a link to the correct one I would appreciate it. I'll consider anything that you have provided it is the correct size.
Thank you.