2007 Mazda 3 drivers side rear view mirror replacement

[baddogandy]

I need to replace a driverside rear view mirror (power/not heated) on a 2007 Mazda 3. Does anyone know where to find the specs online. Also just the morror part is broken, the chassis is still intact, but it looks as if there is a small white plastic piece in the middle that is broken. Will I have to replace the whole assembly or can I just replace the mirror itself?

Thanks