ca blue vin plate question.

[48thames]

I tried to get my A put in my name at AAA today and got to go to CHP to get a vin verification done, because AAA needs to see the vin numbers in 2 different spots. My car came with a AZ title, but must have been titled in CA before, because it has a CA blue DMV vin sticker on the door jam. My question is, do they use 2 stickers and if so, where might I find the other one at?
Thanks.