I just wired up my docking station with a connector from Digi-key, connecting:

pin 2 of the serial port to pin 8 of the docking connector
pin 3 of the serial port to pin 9 of the docking connector
pin 5 of the serial port to pin 13 of the docking connector (the large ground pin)

Pins 6 and 7 of the docking connector are connected together to take advantage of Mark's AC/Home trick he has put into Hijack.

Here is a picture of the connections:



With this setup, I can see output from the player on the serial port, but I cannot input via the serial port. Nothing is echoed back, and no commands actually get to the player. The settings on my terminal program are 8-N-1 with no flow control. I have car_rate=115200 under the [serial] header in config.ini. Hijack forces AC/Home anyway, but I've tried forcing DC/Car and AC/Home with no success. Lopan seems to be having the same problem as described here.

Can anyone shed light on my problem?