@misty Oh, that's odd. Maybe it was a more compact RS-232 connector prior to the DB9 getting adopted widely?
If it is DB15, you might need to build an adapter.
@ieure I wonder! I could see it. Looks like the manual references an official adapter, but I've also found a Pioneer service bulletin with information on the wiring, so I can use that as a reference.
@misty Yeah, they're fairly easy to make, if you're comfortable with a soldering iron.
Happy to help if you could use some guidance with any of that.