well i did the exact thing u r planning to do. wat i did was took out the stocks then took off the door panel and i rewired my car. took the doors off and everything (better sound quality) u dont have to rewire but i suggest it. u could use all of the stock things on the car, ur speakers should have come with 2 rings (these act as extenders so they will fit) the size of the speakers. screw those onto the stock speaker housing things then screw in your new speakers *note: your door panels will have to be off* then plug in an ENJOY