I am about to replace the radio in my Vitesse (1968 MK 1 CV) with a modern as posted in one of the other threads.
In the drivers side footwell side board I have a speaker,it is rectangular, held by 4 studs and nuts, and the speaker and surround look very much like the original one I have for the radio and speaker that sits on the tunnel.The side one is definitely period,i wondered if these were factory fitted as I thought the radio and surround etc. were optional.
Steve