Hey fellas, I have an 05 X with the factory stereo installed(not the Rockford) and my factory speakers are pretty worn out. I want to replace the speakers, but I am not sure what to go with. I DO NOT want to run an amp to the speakers, so would you guys only recommend I go with the factory speakers again? I know most aftermarket speakers require an amp for you to get the best sound out of them. Thanks in advance for the replies. Also, where is the cheapest place to find stock speakers if need be. Oh and finally, what size are the front and rear speakers?