I think one of my door speakers is blew..theyre stock and suck i know. i'm replacing it with nothing too wonderful, just enough to get to not crackle.
after, i was thinking about adding one of these...

http://www.amazon.com/Boss-BASS1200-.../ref=pd_cp_e_3

it was recommended to me at another forum...
does the stock cd player in an 07 1500 quad cab have the RCA outputs for this?

 

did some googling. i do not have the rca in the back so ill need to either get a line out converter or aftermarket stereo.