i am selling an AM FM Stereo on Ebay that was for the 72 Mach1 that i WAS gonna get. but that car will not be in my hands anytime soon, so the radio is for sale. i was just asked by an Ebayer if the radio will fit in the Bezel of a 73 XR7 without any mods... i am pretty sure it will but i just want to be sure. i just want to know if it in fact will. the radio was in a Mustang but im not sure if Ford gor crazy and changed the design of the radios or bezels across the Mustang and Cougar lines between these years. ive never been in a 71-73 Cougar, so i dont know FOR SURE. i just know up to 70. heres the link if anyone else cares to see it and see the description of the radio itself.