Hey all, I just want to start and introduce myself. My name is Mitch and I just got an 03 black cobra 2 weeks ago and I am loving it. I have been reading a lot on here and all the info is really helpful. So to get to my question, I am looking for new speakers to order and really want to get some nice components for the front. The thing is that they aren't cheap and I would probably just get some full range for the back or even leave the stock ones. How much difference do the rear speakers actually make in a 2 door car like this? I know i'll barely use the backseat and I want to try and save as much as I can. And my other question is, in regards to the component speakers, does the shape of them matter? I see some 5x7/6x8 components for sale by some good brands but it seems the circular ones (5.25",6.5") are much more popular, even in many cobras/mustangs which have 6x8 openings. Thanks!