02 ski nautique driver speaker size

[windsurfnut]

Is the driver position speaker smaller then the rest on a 2002 ski nautique? The grill size is smaller then the others. I’m making an assumption that the it is a 5 1/4 and the rest are 6.5” but not available to remove it and check right now and I need to order speakers. Hopefully it holds a 6.5 as buying in each would be difficult.

[MLA]

Are they the same brand/series but look like different size? If they are different brands or series, its hard to say without getting to the back of one each.