<VV> early radio bezel

[mark at noakes.com]

I picked up an early under dash radio housing to use with an aftermarket 
radio in the shop under some cabinets. I know there are two styles of 
early housing. Mine has the two smaller same size holes; the other style 
has one large hole and one small hole.

For the purposes of picking the right radio/adapters, which housing fits 
what years of early Corvair?

Will all radio bezels fit either style?

Thanks,

Mark N