If you have the Bose sound system crutchfield.com says the front speakers are 6 1/2" and rear doors are 5 1/4"
6x9
The 2005 Nissan Altima has door speakers that are 6.5 inches. If you are replacing your speakers, you can also use a 5.5-inch size.
The 2006 Nissan Altima has a 2.5 L base engine size.
Stock rear speakers are 6 1/2" round speakers.
The 2006 Nissan Altima has an inline 4 engine.
They are 5*7 inches
fronts are 6.5 back are 6x9
No, the 06 Altima is a refinement of the 03 Altima - and basically the same size.
just go to www.crutchfield.com . you can find out there.
I recommend going Crutchfield.com as they have instructions on how to install speakers in most cars.
a 6 1/2 speaker fits in the door of a 2006 nissan altima
2006 E250 speaker size is 6x8"