I know some stuff about twingos, I helped a friend installing a second DIN unit on his dashboard (some "plastic" surgery is needed) and we were able to get a perfect 90º mount. The problem is that you lose your ashtray and cigarette lighter.
I am beginning to think this is the only solution (unless I think of the way to make a decent enclosure right in front of driver). Loosing the ashtray and lighter is not a problem (though both my usual passenger and myself do smoke), and I think that this part of the dashboard did not change from '95 model. I might find some A/C ducts behind the ashtray, but it should be possible to reroute them.
Will you be so kind to give me more info on your 'surgery'?
Thanks!
Dragi "Bonzi" Raos
Zagreb, Croatia
#5196
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Dragi "Bonzi" Raos
Q#5196
MkII #080000376, 18GB green
MkIIa #040103247, 60GB blue