Where can I get this horn part?

I have repro Hi and Lo horns on my '65. I broke off a male terminal while inside the female terminal and it will not come out. I see that the female terminals for + and - are actually housed in a little black peice that snaps onto the horn itself. Where can I find another one of these black female terminal housings? I have looked everywhere. None of the resto catalogues sell this little peice. Is it common to all Ford horns? Can I just get one at a junkyard?
 
Found a pic of on except mine is female not male
 

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