Cd24 is the part itself (560pf cap) one end to ground and the other end to the + side of the C5 cap. in that picture of the link above, you can see the black tube there is soldered to the +side of the C5 cap and the other end to the ground screw.
On mine, It's not a wire, it's a 560pf ceramic capacitor connected between the screw and next to the C5 capacitor. just like in the picture in the link below.
https://www.audiokarma.org/forums/index.php?threads/kenwood-ka-7100-question.844804/