My stereo in my Vette is getting just to "problematic" and its time to swap out for something new. I have 1 speaker that is crackling and the head unit works on and off. Does anyone have an idea of direct replacement speaker sizes? Recommendation on speakers and head unit. I'm not looking for anything wide, simply AM/FM CD with good set up speakers. I have asked Santa for iPod this Christmas already and if its not that much more $$ I would opt for iPod connector as well.