changing rear speakers...

I have a 2000 cougar, the rear speakers are blown.. I am not sure if there is an easy way to get to the speakers to change them, and if there is i am not sure what size replacement speakers to get.. so if anyone knows how to replace the rear speakers in the vehicle and what size speakers it will take please let me know... thank!!

also has anyone had problems with there front doors? sometimes my driver side will not open even when unlocked, and the passanger side will not close. it only seems to happen when the air is moist outside.. both doors kind of sag lower than they are supposed to, but from i have heard that is normal in these vehicles... i love these cars, but it has so many fricken issues...

I have a 2000 cougar, the rear speakers are blown.. I am not sure if there is an easy way to get to the speakers to change them, and if there is i am not sure what size replacement speakers to get.. so if anyone knows how to replace the rear speakers in the vehicle and what size speakers it will take please let me know... thank!!

also has anyone had problems with there front doors? sometimes my driver side will not open even when unlocked, and the passanger side will not close. it only seems to happen when the air is moist outside.. both doors kind of sag lower than they are supposed to, but from i have heard that is normal in these vehicles... i love these cars, but it has so many fricken issues...
Not sure how to remove old speakers but you can replace them with Pioneer TSA6870R 6X8 fits ford and Mazda I seen them at WalMart for $56.86.

Do you know if I can buy the resister pack alone or do I buy a new blower moter.