I just thought it would be fun to have two sets of components lol. The stock system does have tweeters in the dash and i'm not sure if there are woofers in the door stock or full range. Well if they are stock that probably means just cheap speakers. Was mainly looking at the kicks for better imaging or projection to listener. Door and dash locations don't really offer the best placement for sound. Maybe install the kicks and a nice set of three or two way speakers in the door and just leave the stock dash tweaters alone.