Hello everyone. On my Saturn on I'm running Alpine SPR 6.5 Coaxial Speakers in the front with pheonix Gold tweeters. Reason why I chose the coaxial was because I could not afford the Alpine SPR component Speakers. So anyways my front setup sound really good. Now my back speakers are infinity speakers 5.25 size. (Stereo shop didnt have alpine speaker size of 5.25, so i was I fine with infinity speakers being put on) However now I want to change my infinity speakers in the back to Alpine. The way my front setup is, Am I better off choosing Alpine 5.25 Component SPR or going with SPR 6.5 Components where more a little more modifying would have to be involved? What do you guys think?