I remember reading somewhere in the brochure that are cars come with 10 speakers just glancing quickly I can only locate 2 in doors, 2 by the rear seats, 2 by the back window. Where are the other four ? I must say that the amp, DDL & SDV helped tremendously. The sound system is not as bad as some make out to be of course can always be better. I have heard worse stock systems on more expensive machines. Has anyone run an after market AMP & Speakers with the stock HU ? I really like the way the HU fits the car and would like to keep it but to boost it with more power.