Find Mike Morris on Facebook. He's from Florida, has a red fiero in his profile pic. Bought a good bit of stuff from him for my trans am, I'm sure he would have what you need.

 

To the top, I went to FB, contacted an owner in San Antonio and what was shipped was the interior vent, on the passenger side outboard vent.

 

I believe I have some of these. Can u get me a measurement so I can check which one u need

 

Thanks for the reply, below are the images of the opening and a center console vent I received which is apx 1/8 inch (1~2mm) too small in diameter. I used the measurements from the 1 inch starting point to be as accurate as possible. The vent needs to be just above 3 inch in diameter, possibly 3 1/16in to 3 1/8in. I wish the old one hadn't been cracked and broken when I pulled it out, I didn't realize at the time there are 2 or 3 different sized vents for the 3 vent locations in the dash.


Looks to be just shy of 3 3/16 in opening


I didn't get a good angle on this, but looks to very close to 3 3/16 in


Vent I have is 2 7/8 in

For reference


As a reference the 2 7/8 in vent in 3 3/16 in opening there is about a 1/8 in gap, the teeth on the sides of the vent cannot fill the opening's indents from the old vent. This vent goes in and out too easy.