This page is currently under construction as I do not have a MIB Mexican Aja (yet:)
 

Mexican Aja In order for this to be interesting, you should probably be familiar with the Hong Kong/Chinese*Aja.  Assuming you are, let's begin! *Chinese/Hong Kong made dolls are those typically found in the US, Canada, Australia, most of Europe.

Mexican Made Face (I'm guessing there may be Mexican Aja's with leftover Hasbro heads too) Her face is pretty much the same, though on the whole it is a lot paler (especially the pink areas).  You'll also notice how very crooked her eyebrows are... maybe it's specific to my doll, I don't know.  Her head is not stamped at all, there are no Hasbro markings on her that I can find.  The defining Mexican feature is her body is super shiny and has no Hasbro marks on it at all.  The hair is sewn on quite poorly- (look at her hairline!) there are even some punched holes on her upper forehead without hair in them. Poor thing!  Unlike most Mexicans, she comes with the ball-joint wrist.

The shirt is basically the same, but yet again the lamé is replaced by the plastic-y leatherette material.

My Mexican Aja came wearing this black pleather skirt- not until now did I realize it's probably the Mexican version of her skirt.

She got the same colour as Mexican Shana, and Mexican Roxy's guitar, a deep purple colour.  Glitter plastic, like the regular 2nd edition instruments but the strings, etc. are printed on a clear decal, not directly on the plastic.  Scan courtesy of Floortje

Cassette (dubbed in Spanish)

AJA: Tema De Jem, Para Ti, Ella Tiene El Poder (Jem Theme, Because of You, She's Got The Power)  thanks to Taffeta for this information