all i can add to this is the stock 6x8 (non audiophile) units are friggen tanks. i ahve beaten the snot out of mine badly for the last 8 years my car has existed. and they still havent given up. i'd like to build a 3 way component setup up front but use the stock door speakers for the mid low (they have a pretty good mid low in my mind.)
your car will never be like my car, after all you have common sense......