Another amateur radio operator - welcome Peter!
I don't think there were fittings for sun visors in 1994, certainly my 1993 4/4 did not have said threaded posts, nor holes drilled and tapped for them. My '97 +4 may have done, I can't remember now.
It's either a peaked cap, probably of the baseball variety, or if you can find any those that clip over the top of the windscreen?
Two sensible replies in the time it me to write that!
