“souvenir” is a reflexive verb. You will always use it as “se souvernir”.
So it would be :

Tu te souviens d’Aaron ?
Tu te souviens de Stéphane ?
Te souviens-tu du zoo que nous avions visité ?
Est-ce que tu te souviens de l’histoire du garçon qui criait au loup ?

Please see source with the full verb

EDIT:
As @Stephane points out, you also misuse “de” and “du”.
Note that “du” is the shortened version of “de le”.
Here, you won’t say “le Aaron”, since it is a person, so you have to use “de”.
Note that « de la » and « de l’ » must not be shortened with du (as you see in my first and third examples).
For more information about “de” and “du”, you may see on an other thread this answer from @Gilles

You would most commonly say

Tu te souviens d’Aaron?

if Aaron is a name (I don’t know what Aaron is), but you can also say

Te souviens-tu d’Aaron?

Tu te souviens du Aaron

this means

Do you remember the Aaron?

so it isn’t correct