Alright so my grand prix doesn't have bose (unless someone changed the speaker covers) and the two front speakers are gettin kinda blown but the back ones work really good. And by really good I mean it literally sounds like I have subwoofers. I used to have 2 12's, and I know that these stock speakers are really bassy. They're delco. Either my speakers in my old car just sucked or these are really good, which is it? And there's only 4 speakers correct? Two in front and two in back?