Hi, im trying to find some door speakers to replace my mach460 ones but every website i have gone to that has a "what fits my vehicle" feature shows different sizes, they are 6x8's right ? what else would fit in the hole? polk audio 's website says that ALL of the speakers in the car are 5.25 this site is telling me there are 2 front speakers, one 6" in the door and one 5.25" somewhere else up front ?? (can someone tell me where this one is) one more question: if i got componets will the tweeter fit in the existing pods?