as a slightly different answer: the connector is a normal 8 pin .100 pitch one. You can get replacements from your normal electronics parts distributor. Youll need the connector, the pins, a DIN connector and cable: all told, it' could cost a bit to DIY one, but it is easily possible today with new components. It'll be really high quality too.
That said, I recommend a direct wire to teensy, unless you really like making cables.