lookin to rplace my speakers i got an 89 mustang convertible with 6 speakers what are there sizes and whats the best speaker for highs...im also using a rockford fosgate p 4004 model amp for the speakers and a p8002 for the subs...also if any1 has suggestions for sub box for the trunk anyhelp would be useful...limited trunk spacer there i was just gonna get 2 12 inch truck boxes