I'm thinking of getting a pair of JBL components for the front, and I'm not sure if I should get speakers for the back? I was told that I would get better sound quality just putting good speakers on the front with a good amp. This is for an 05 Toyota Corolla.
Speakers: JBL Power P650C
Amp: Kicker ZX200.4
What do you guys think? Also it seems like the speakers that fit in the front are 7", where can I get an adapter for that?