Compatibility question

As I am looking for an MIB2 headunit to upgrade the one (MIB1) in my 2015 GSW SE (w/ Fender audio), I see different part IDs popping up: 3Q0035878, 3Q0035844, 3Q0035844A etc (all listed as MIB2 w/o Navigation for 2016 and newer Golf/GTI trims). The stock part in my car is 5G0035844.

Are these parts interchangeable, i.e. can I use any of them for my upgrade? In particular are 3Q0035844 and 3Q0035844A interchangeable?

Thanks in advance!