Nuts!

Hopefully some other members will chime in there for you. I’m more of a proponent of “tailpipe stereo systems” myself. That and the general mechanical sounds of our cars from this era is near and dear to my heart and I don’t want anything to interrupt it while I’m in “The Wayback Machine!”
Lol! I'm a fan of the tail pipes myself, however, in this case, the music is from a slightly tired slant 6 with a 1bbl. At this stage of the game, I'm not sure what creaks more, me or the car!