not sure about A4NA but A4A has a unique sweet scent that doesnt really requrie a cover scent, at least not for me.

if you like it or for some reason would like to know how to achieve a similar smell.

I would recommend "Curve", but only do very mini sprays on the app point of w/e unscented product you are using. I sprayed very little "curve" on my cohesion and evolve on my wrist and it smells almost exactly like A4A. idk if its the simlar mid or bottom note, no sure, about just fyi.