[David930]

What radio should my Euro 1989 930 have?
Currently it is fitted with a Clarion 916HP.
I find it strange but I thought the original radios were all Blaupunkt, everything else on my car is original but for some reason I suspect that the radio isn't.
Any ideas what the radio should be, what have other 1989 930s got as radios?
Not too worried about it as I can't really hear it when I am pressing the loud pedal!