c210 speedometer cable

[77JAPAN]

i'm trying to figure out which firewall opening does the speedometer cable for the 77 cg210 goes through? the previous owner of the vehicle had removed the cablewhich after connecting from the gauge cluster and looking at the manuals i have (au, jp, and uk versions) this is not illustrated for clarification. if anyone can help, i'd really appreciated it...

[khughes]

i would imagine that it would be pretty close to being right behind the speedo, i can't imagine a spinning cable in a jacket would like to be bent too much

presuming the speedo isn't electric in the C210 (but doubt it)