I have a 2003 Mazda Protege. Fronts are 5x7/6x8 and Rear is 6x9. I am going to go with a Comp set in the front but unsure if a 5.25 or 6.5 would be better. For the Rear I plan on putting in 2 focal 13ks unless putting another comp set or a good 6x9 coax would be better. Suggestions?