speaker size

Car i have now: 2010 Ford Fusion SE Audio system currently installed: Factory sync gen 1 that won't detect a bluetooth phone (No phone) Pulling the fuse doesn't fix it and neither does pulling the negative battery cable Factory speakers (All 5x7's) Car I sold: 2001 Z06 Corvette Audio system...

Everyone here has been helpful and now I would like to know if I’m doing the right choice of changing my front component 6x9 alpine type r set to some 6.5 dead bounce Arnold ? Should I stay with my alpines or change. What will the difference be ?