Aerial Problem

This is ridiculous but I fitted a Sony head unit but can't get either the aerial adaptor that came with it or the other one I bought to connect to the standard aerial plug.

What do i need to get it to fit?

I ripped the stupid wee metal attachment the standard one has and stripped the wire back but still can't get it to connect.

Please help.
 
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It's called a Fakra to DIN adapter.

Well for the Clio 200 anyway...