You're better off asking them. Direct from Retrosound's website, regarding 69's:
"SPECIAL NOTE: PLEASE CHECK YOUR PONTIAC FIREBIRD/TRANS AM DASH OPENING, IT MAY HAVE A BAR DIVIDING THE PUSHBUTTONS OF YOUR ORIGINAL RADIO AND THE FACE, IF THIS IS THE CASE, NO RADIO WILL FIT UNLESS THE BAR IS REMOVED, OR YOU HIDE OUR RADIO IN THE GLOVE BOX AND LEAVE THE ORIGINAL. IF THE BAR HAS BEEN REMOVED, PLEASE EMAIL US WITH THOSE DIMENSIONS SO WE CAN SUGGEST A SOLUTION!"
