Datapoint Sango/ɲ - voiced palatal nasal
Although I have not studied this segment very carefully, it seems to me that it may always be followed by a nasalized vowel, and it may be realized as a nasalized /y/ preceding a nasalized vowel. Its realization is probably affected by some of the languages of the Central African Republic.
Values 
Exists (as a major allophone)
- Example 59-406:
-
nyon'to drink