I'm going run a 4thgen rear view mirror i have ran wires for the rear view mirror courtesy lights and everything is ready to go... but i have a wider size attachment on the windshield where my OEM 3rdgen mirror mounted to the glass, the 4thgen mirror mount isn't as wide and can be detached by unbolting the torques bit in the center of the mount where as the 3rdgen one is fixed and can not be unbolt... So my question is where can i get the 3rdgen style mount that i can bolt on the 4thgen post? i don't really want to take the attaching peace off the windshield id rather just swap mounts.

here is a pic to give you some insight on what im talking about
(3rdgen on your left, 4thgen on your right)