so what is actually different from the base models and the limiteds ? so far i'm finding them to be minor things, painted accents, leather high back seats with or with out heated seats, fog lights, six speaker audio over four speaker, heated mirrors and storage netting. does any one know if i'm missing something, also what options where really available ? and what does the option codes stand for ? i have a base model '06 and want to add in a few options here and there as i find them.