Speedometer cable access hole in firewall?

[mauibarber]

Putting in a new speedometer cable on a69 charger,  440 automatic transmission and I don't know which hole the speedometer cable goes through on the firewall.  I have been searching online and in my manual and can't find any pics.  Please help.
Thanks,
Alex

[mauibarber]

I found the correct access hole in the firewall.

On a side note, I was dissapointed how poorly the speedometer cable end fit on the guage side.  Original guage with new year one speedometer cable.  the little plastic hinge didnt grab well at all. 

[Nacho-RT74]

bend a little bit inside the tab to make to get pressure and then plug it... did happen to me with one aftermarket cheap one I found down here and got it plug.

becarefull, you can break it.