So I've read multiple times that there is a sticker in our trunk where the spare tire is that specifies what our cars came with out of the dealership. To me, it is just a bunch of letters and numbers that don't mean anything. Where can I found out what these letter/number combos stand for?

 

I guess you have already found the sticker so there's no use me posting a picture of that. So take a look Here: http://igorweb.org/equidec/Default.aspx And read the instructions. It should give you what your seeking.

Good Luck...