replaced rear speakers

..replaced the rear speakers in the octy today with a set of old infinity coaxials i had lying around!! just thought id let you know it sounds soo much better then the stock speakers for a start you dont have have a crackly nasty sounding tweeter right next to your ear...and teamed up the my alpine compnets up front and tinkering with the HU eq sounds soo clear and sound fills the cab up really well...i was lead to belive that the rear speakers were 4" but they are actualy 5 1/4 "....well worth replacing if you are thinking of doing so..

Joel