Correct AM Radio Front Mount Antenna Grommet
 

Hi Camaro Experts:

I have a 1968 Camaro manufactured in May 1968 and am trying to get it back to original. I've attached a photo of the two styles/types of AM radio cable front mount antenna firewall grommets I've encountered. Does anyone know the correct factory installed AM radio antenna cable firewall grommet that was used? Look forward to hearing from the experts. Thanks. Tommy 68