I agree Crutchfield is the place. I got some Polks from them about a year ago. I love them. You have to do some modifications to the rear shelf speakers on a sedan, I don't know about the wagon. For the dash and doors they have you covered. I think the OEM are 5" in the doors, maybe only 2" on the dash. I put small tweeters in the dash they really sound great with two way spkrs in the doors. Polks are a bit pricy but they have hundreds to choose from. Just call them up they really know the meaning of customer service. You will probably order 4 1/2" for the doors and they ship with a bracket. Don't worry about the details the guys and gals at crutchfield are great. They'll talk you thru it all!