well you want to put new aftermarket speakers in your doors and such around your car.. make sure they fit properly.. go to www.crutchfield.com and enter your car information and they will tell you what will fit your car.. for speakers i would go with polk audio, infinity kappa, or pioneer.. and subs i would go with kicker, mtx, or alpine.. even pioneer depending on what your budget.. and an amp.. you want an amp that has equal amount of RMS watts as your sub, i would go with kicker, mtx, for alpine or an amplifier