I would like to use one of the newer MB OEM radios in my '90.

If I have this staright- the radios from '94-98 are one type of fiber opitc setup, while those after are another type.

The only kind that interest me are those that fit the standard DIN hole, of course.

Can someone explain to me the following:

What fits the older (pre '94 cars)
can the older cars be retrofitted to accept the newer style CD changer?
Can I purchase the wire harness seperately?

Thanks.

__________________
'90 300SE 298k
-300K and it gets put into retirement.
'80 300D 255k Purchased new by family in 1980.

Had a:
1973 220 (gas)
1980 300SD
1992 400E