A friend and I got a '67 GS 400 a little bit ago with Am/fm,front and rear speaker and reverb(dealer). The radio has the sticker with #7298914. What does this tell us? I've seen a link w/Delco radio #'s but can't find it. It is nice-no pits/cracks,etc. Not sure on working condition-any way to give this thing a "tune up" or any mantinence? Any info is welcome-Thanks-Scott
