Help me crack open my ATH T-300!

[CrystalT]

No visible screws. Did some poking around, can't quite find find how to open these up. Anyone able to identify where I should start?
 

 

Tore open the backplate, but they don't seem to serve any function.

looking to open 'em up without breaking them. Want to play around inside and do some modding.

 

[CrystalT]

Manged to open 'em up. Any advice on fun things to do to them?
 
the insides are basically just plastic.
 
they're about the same size as grado/koss drivers. considering transplanting them to a different housing.