What size rear speakers are in a 2008 Honda Civic LX Sedan?

I am wanting to install some aftermarket speakers but don't know what size are in the rear. I am thinking about Rockford Fosgate because I loved the 6" x 8" I had in my truck. I might give JL Audio a try, what do you think? I am NOT wanting to add a sub, just install new speakers. My car is a 2008 Honda Civic LX Sedan. Thanks!What size rear speakers are in a 2008 Honda Civic LX Sedan?5.25" in the rear deck(package shelf).What size rear speakers are in a 2008 Honda Civic LX Sedan?Polk Audio DB401 is a proprietary Polk Audio technology with laser imaging to determine what combination of speaker materials create the least response. Eliminating resonance results speakers, a broad, smooth and low distortion.What size rear speakers are in a 2008 Honda Civic LX Sedan?small wimpy ones