Hi Everyone, I am new to this forum and am excited to have found it. I am working on a 1968 Firebird with factory A/C. I am having a major challenge getting the old radio out to install my new USA-740 from Custom Autosound. I have removed almost everything necessary for the removal of the radio. I am unable to get the distribution ducts out or glovebox to allow me to remove the radio brace to radio screw. Please! Any help will be greatly appreciated.