I'm sure what my happen but the question is will the steering wheel mounted audio controls work with a HU? I found a post on the forums about this same issue and that I would need an adapter. Also if I was to replace my factory deck I'll loose other features as in the warning features (low oil etc..) not sure if that true or not.. Anyway seems that keeping the factory or replacing it has it's pros & cons, but does it really matter if I keep the factory deck? I understand that I might or will some sq if I stick with it but I'm not sure if I should replace the hu. Any suggestions?