Here is a picture of the dock pins on my nano. This is the best picture I can get. The magenta lines are where I found paths when testing the pins with my LOD. I will research more into how to decipher which is which.
For the people who have never seen the internals of the nano, the "Z" caps C53/C54 are on the backside of the upper-half of the nano. So I led the wires through a crack near the battery to get the wires onto this side of the nano (relative to the picture). It's quite trivial to route the wires to the pins shown in the picture without upsetting anything.
