Kinda but not really. Try the audio forum too. But I have never heard of anyone who has hooked up a sub in their spare's wheel well without also taking out the spare. I don't think there would be enough room. But for just about any car, the doors are gonna be harder than the rear because of all the things you have to do to get to them. Also what plays a factor is if you are going to amplify those speakers. If so, it will be that much harder because you have to run more wires. If not, then it should be a lot easier for you to do.

What kind of Infinity's are you geting and for how much?