need help with speakers!
So i recently decided i was going to change my stock 460 sound system in my 99 mustang gt. i have done a little research and have gotten many different sizes of speakers. i went out and bought a pair of Pioneer TS-A6885R 6" x 8" 4-Way TS Series Coaxial Car Speakers and haven't had time to see if they will fit all 4 speakers that i am replacing? are the sizes wrong and do i need a speaker adapter to plug these ones in? All responses are very much appreciated thanks guys