Speaker size in 2001 GXE??

Just wonder what speaker size is in the front door's of a 2001 Sentra GXE?
Is it 5 1/4" or 6 3/4" or 6 1/2"?

Does any one know???????

I believe it is 6.75", I have some 6.5's in there and they fit great. Whatever you get, you will need about a .5-.75" spacer depending on the depth of the speakers you decide on to keep them from hitting the window when its rolled down