You can find several parts manuals on the internet, this is a good one:
https://www.gcp.se/en/catalogues/mod...60-s90-v90-en/
According this manual the matrix for a non-A/C system is different from an A/C system (MCC and ECC systems share the same matrix model) There is also a difference between RHD and LHD cars, so there are four different models in total. There is no use in keeping a 96 non-A/C matrix in stock for an AC 98.