Retrofit Mazda5 sunvisor with sliding '12 Mazda6?
 

My service advisor says there is no sliding sun visor available for my '09 Mazda5. However, the service tech eyeballed and measured, and thinks that the 2012 Mazda6 has the same dimensions. Has anyone tried this? I used a piece of styrofoam meat tray sliding through the wide strap on the nonmirror side of the visor when it is positioned down on the side window.