07 Suburban, Howmany speakers do i have & what size are they?

okay, i just installed a alpine head unit & kicker l7 sub, now my stock speakers are sounding like there gonna blow any day now,
 
how many speakers do i have to replace? and what sizes are they?
 
oh and what would you go with?

depends if you have the bose or not.....which Im guessing no cause it comes wiht a SUB..anyhow....so if not you have 8 speakers in the LS And LT trim, the LTZ has 9 the 8 aformentioned and the SUB, now I THINK there are 4 in the dash, tweeters are there somewhere, and 1 in each door......if it has a SUB...it should be in the center console, the Tahoes is there anyhow, between the seats.