I did it on my g12
I replace ihka (ac) module plus ionizer module with two ionizer sensors and air freshener pump
Then you need air freshener cartridge-running so fast- you can reset cartrige ( I have a simple software for it plus credit card chip reader to do this )
Overall easy retrofit but little expensive and I think not worth it - sorry but it’s my personal opinion
Let me know if you have any questions
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Patryk chmielewski
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