first of all let me ask this

i'm 17 and just got my license. i saved up some money and ended up buying a 1991 300E 3.0L
its got 86,000 miles on it and i paid $ 5,000

is that a good deal, or even worth it ?
(i don't know much about these cars....i don't know much about any car actually)

now to my actual question

in the model described there are:
2 speakers in the dashboard
2 in the front door panels
2 in back of the rear seats

a) are there any other speakers i'm unaware of ?

b) what are the sizes of the speakers listed ?

 

The dash speakers are an odd size they are @5" round the doors are the woofers and are @ 5.5" and the rear speakers are @5" also remember in the back there are 2 tweeters on each side.