2009 Toyota Yaris Sedan Rear Speaker help

[BJB3]

I am wanting to change my rear speakers from the crappy sounding ones to something different. What are the best ones any of you have found for this and whats the best way to go about putting them in? I have already replaced the front door speakers and I haven't gotten around to see how difficult these back ones may be.

[ciscobear]

If you are replacing them with 6x9s, you will need to purchase the 6x9 adapters. Search the forum, lots of information on here.